78127920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:540

約数の個数: 240

約数和(自身を含む): 299793312

約数和(自身を除く): 221665392

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 390, 408, 442, 468, 491, 510, 520, 585, 612, 624, 663, 680, 720, 765, 780, 816, 884, 936, 982, 1020, 1040, 1105, 1170, 1224, 1326, 1360, 1473, 1530, 1560, 1768, 1872, 1964, 1989, 2040, 2210, 2340, 2448, 2455, 2652, 2946, 3060, 3120, 3315, 3536, 3928, 3978, 4080, 4419, 4420, 4680, 4910, 5304, 5892, 6120, 6383, 6630, 7365, 7856, 7956, 8347, 8838, 8840, 9360, 9820, 9945, 10608, 11784, 12240, 12766, 13260, 14730, 15912, 16694, 17676, 17680, 19149, 19640, 19890, 22095, 23568, 25041, 25532, 26520, 29460, 31824, 31915, 33388, 35352, 38298, 39280, 39780, 41735, 44190, 50082, 51064, 53040, 57447, 58920, 63830, 66776, 70704, 75123, 76596, 79560, 83470, 88380, 95745, 100164, 102128, 108511, 114894, 117840, 125205, 127660, 133552, 150246, 153192, 159120, 166940, 176760, 191490, 200328, 217022, 229788, 250410, 255320, 287235, 300492, 306384, 325533, 333880, 353520, 375615, 382980, 400656, 434044, 459576, 500820, 510640, 542555, 574470, 600984, 651066, 667760, 751230, 765960, 868088, 919152, 976599, 1001640, 1085110, 1148940, 1201968, 1302132, 1502460, 1531920, 1627665, 1736176, 1953198, 2003280, 2170220, 2297880, 2604264, 3004920, 3255330, 3906396, 4340440, 4595760, 4882995, 5208528, 6009840, 6510660, 7812792, 8680880, 9765990, 13021320, 15625584, 19531980, 26042640, 39063960, 78127920]

約数ペア:

[(1, 78127920), (2, 39063960), (3, 26042640), (4, 19531980), (5, 15625584), (6, 13021320), (8, 9765990), (9, 8680880), (10, 7812792), (12, 6510660), (13, 6009840), (15, 5208528), (16, 4882995), (17, 4595760), (18, 4340440), (20, 3906396), (24, 3255330), (26, 3004920), (30, 2604264), (34, 2297880), (36, 2170220), (39, 2003280), (40, 1953198), (45, 1736176), (48, 1627665), (51, 1531920), (52, 1502460), (60, 1302132), (65, 1201968), (68, 1148940), (72, 1085110), (78, 1001640), (80, 976599), (85, 919152), (90, 868088), (102, 765960), (104, 751230), (117, 667760), (120, 651066), (130, 600984), (136, 574470), (144, 542555), (153, 510640), (156, 500820), (170, 459576), (180, 434044), (195, 400656), (204, 382980), (208, 375615), (221, 353520), (234, 333880), (240, 325533), (255, 306384), (260, 300492), (272, 287235), (306, 255320), (312, 250410), (340, 229788), (360, 217022), (390, 200328), (408, 191490), (442, 176760), (468, 166940), (491, 159120), (510, 153192), (520, 150246), (585, 133552), (612, 127660), (624, 125205), (663, 117840), (680, 114894), (720, 108511), (765, 102128), (780, 100164), (816, 95745), (884, 88380), (936, 83470), (982, 79560), (1020, 76596), (1040, 75123), (1105, 70704), (1170, 66776), (1224, 63830), (1326, 58920), (1360, 57447), (1473, 53040), (1530, 51064), (1560, 50082), (1768, 44190), (1872, 41735), (1964, 39780), (1989, 39280), (2040, 38298), (2210, 35352), (2340, 33388), (2448, 31915), (2455, 31824), (2652, 29460), (2946, 26520), (3060, 25532), (3120, 25041), (3315, 23568), (3536, 22095), (3928, 19890), (3978, 19640), (4080, 19149), (4419, 17680), (4420, 17676), (4680, 16694), (4910, 15912), (5304, 14730), (5892, 13260), (6120, 12766), (6383, 12240), (6630, 11784), (7365, 10608), (7856, 9945), (7956, 9820), (8347, 9360), (8838, 8840)]