218888880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{2659}}^1$

素因数の和:2696

約数の個数: 160

約数和(自身を含む): 791616000

約数和(自身を除く): 572727120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1680, 1715, 1960, 2058, 2352, 2659, 2744, 2940, 3430, 3920, 4116, 5145, 5318, 5488, 5880, 6860, 7977, 8232, 10290, 10636, 11760, 13295, 13720, 15954, 16464, 18613, 20580, 21272, 26590, 27440, 31908, 37226, 39885, 41160, 42544, 53180, 55839, 63816, 74452, 79770, 82320, 93065, 106360, 111678, 127632, 130291, 148904, 159540, 186130, 212720, 223356, 260582, 279195, 297808, 319080, 372260, 390873, 446712, 521164, 558390, 638160, 651455, 744520, 781746, 893424, 912037, 1042328, 1116780, 1302910, 1489040, 1563492, 1824074, 1954365, 2084656, 2233560, 2605820, 2736111, 3126984, 3648148, 3908730, 4467120, 4560185, 5211640, 5472222, 6253968, 7296296, 7817460, 9120370, 10423280, 10944444, 13680555, 14592592, 15634920, 18240740, 21888888, 27361110, 31269840, 36481480, 43777776, 54722220, 72962960, 109444440, 218888880]

約数ペア:

[(1, 218888880), (2, 109444440), (3, 72962960), (4, 54722220), (5, 43777776), (6, 36481480), (7, 31269840), (8, 27361110), (10, 21888888), (12, 18240740), (14, 15634920), (15, 14592592), (16, 13680555), (20, 10944444), (21, 10423280), (24, 9120370), (28, 7817460), (30, 7296296), (35, 6253968), (40, 5472222), (42, 5211640), (48, 4560185), (49, 4467120), (56, 3908730), (60, 3648148), (70, 3126984), (80, 2736111), (84, 2605820), (98, 2233560), (105, 2084656), (112, 1954365), (120, 1824074), (140, 1563492), (147, 1489040), (168, 1302910), (196, 1116780), (210, 1042328), (240, 912037), (245, 893424), (280, 781746), (294, 744520), (336, 651455), (343, 638160), (392, 558390), (420, 521164), (490, 446712), (560, 390873), (588, 372260), (686, 319080), (735, 297808), (784, 279195), (840, 260582), (980, 223356), (1029, 212720), (1176, 186130), (1372, 159540), (1470, 148904), (1680, 130291), (1715, 127632), (1960, 111678), (2058, 106360), (2352, 93065), (2659, 82320), (2744, 79770), (2940, 74452), (3430, 63816), (3920, 55839), (4116, 53180), (5145, 42544), (5318, 41160), (5488, 39885), (5880, 37226), (6860, 31908), (7977, 27440), (8232, 26590), (10290, 21272), (10636, 20580), (11760, 18613), (13295, 16464), (13720, 15954)]