278483760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20357}}^1$

素因数の和:20395

約数の個数: 120

約数和(自身を含む): 984512880

約数和(自身を除く): 706029120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 20357, 40714, 61071, 81428, 101785, 122142, 162856, 183213, 203570, 244284, 305355, 325712, 366426, 386783, 407140, 488568, 610710, 732852, 773566, 814280, 916065, 977136, 1160349, 1221420, 1465704, 1547132, 1628560, 1832130, 1933915, 2320698, 2442840, 2931408, 3094264, 3481047, 3664260, 3867830, 4641396, 4885680, 5801745, 6188528, 6962094, 7328520, 7735660, 9282792, 11603490, 13924188, 14657040, 15471320, 17405235, 18565584, 23206980, 27848376, 30942640, 34810470, 46413960, 55696752, 69620940, 92827920, 139241880, 278483760]

約数ペア:

[(1, 278483760), (2, 139241880), (3, 92827920), (4, 69620940), (5, 55696752), (6, 46413960), (8, 34810470), (9, 30942640), (10, 27848376), (12, 23206980), (15, 18565584), (16, 17405235), (18, 15471320), (19, 14657040), (20, 13924188), (24, 11603490), (30, 9282792), (36, 7735660), (38, 7328520), (40, 6962094), (45, 6188528), (48, 5801745), (57, 4885680), (60, 4641396), (72, 3867830), (76, 3664260), (80, 3481047), (90, 3094264), (95, 2931408), (114, 2442840), (120, 2320698), (144, 1933915), (152, 1832130), (171, 1628560), (180, 1547132), (190, 1465704), (228, 1221420), (240, 1160349), (285, 977136), (304, 916065), (342, 814280), (360, 773566), (380, 732852), (456, 610710), (570, 488568), (684, 407140), (720, 386783), (760, 366426), (855, 325712), (912, 305355), (1140, 244284), (1368, 203570), (1520, 183213), (1710, 162856), (2280, 122142), (2736, 101785), (3420, 81428), (4560, 61071), (6840, 40714), (13680, 20357)]