1815570080

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^2$

素因数の和:156

約数の個数: 216

約数和(自身を含む): 4907269332

約数和(自身を除く): 3091699252

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 43, 68, 76, 80, 85, 86, 95, 136, 152, 160, 170, 172, 190, 215, 272, 304, 323, 340, 344, 361, 380, 430, 544, 608, 646, 680, 688, 722, 731, 760, 817, 860, 1292, 1360, 1376, 1444, 1462, 1520, 1615, 1634, 1720, 1805, 1849, 2584, 2720, 2888, 2924, 3040, 3230, 3268, 3440, 3610, 3655, 3698, 4085, 5168, 5776, 5848, 6137, 6460, 6536, 6880, 7220, 7310, 7396, 8170, 9245, 10336, 11552, 11696, 12274, 12920, 13072, 13889, 14440, 14620, 14792, 15523, 16340, 18490, 23392, 24548, 25840, 26144, 27778, 28880, 29240, 29584, 30685, 31046, 31433, 32680, 35131, 36980, 49096, 51680, 55556, 57760, 58480, 59168, 61370, 62092, 62866, 65360, 69445, 70262, 73960, 77615, 98192, 111112, 116960, 122740, 124184, 125732, 130720, 138890, 140524, 147920, 155230, 157165, 175655, 196384, 222224, 245480, 248368, 251464, 263891, 277780, 281048, 295840, 310460, 314330, 351310, 444448, 490960, 496736, 502928, 527782, 555560, 562096, 597227, 620920, 628660, 667489, 702620, 981920, 1005856, 1055564, 1111120, 1124192, 1194454, 1241840, 1257320, 1319455, 1334978, 1405240, 2111128, 2222240, 2388908, 2483680, 2514640, 2638910, 2669956, 2810480, 2986135, 3337445, 4222256, 4777816, 5029280, 5277820, 5339912, 5620960, 5972270, 6674890, 8444512, 9555632, 10555640, 10679824, 11347313, 11944540, 13349780, 19111264, 21111280, 21359648, 22694626, 23889080, 26699560, 42222560, 45389252, 47778160, 53399120, 56736565, 90778504, 95556320, 106798240, 113473130, 181557008, 226946260, 363114016, 453892520, 907785040, 1815570080]

約数ペア:

[(1, 1815570080), (2, 907785040), (4, 453892520), (5, 363114016), (8, 226946260), (10, 181557008), (16, 113473130), (17, 106798240), (19, 95556320), (20, 90778504), (32, 56736565), (34, 53399120), (38, 47778160), (40, 45389252), (43, 42222560), (68, 26699560), (76, 23889080), (80, 22694626), (85, 21359648), (86, 21111280), (95, 19111264), (136, 13349780), (152, 11944540), (160, 11347313), (170, 10679824), (172, 10555640), (190, 9555632), (215, 8444512), (272, 6674890), (304, 5972270), (323, 5620960), (340, 5339912), (344, 5277820), (361, 5029280), (380, 4777816), (430, 4222256), (544, 3337445), (608, 2986135), (646, 2810480), (680, 2669956), (688, 2638910), (722, 2514640), (731, 2483680), (760, 2388908), (817, 2222240), (860, 2111128), (1292, 1405240), (1360, 1334978), (1376, 1319455), (1444, 1257320), (1462, 1241840), (1520, 1194454), (1615, 1124192), (1634, 1111120), (1720, 1055564), (1805, 1005856), (1849, 981920), (2584, 702620), (2720, 667489), (2888, 628660), (2924, 620920), (3040, 597227), (3230, 562096), (3268, 555560), (3440, 527782), (3610, 502928), (3655, 496736), (3698, 490960), (4085, 444448), (5168, 351310), (5776, 314330), (5848, 310460), (6137, 295840), (6460, 281048), (6536, 277780), (6880, 263891), (7220, 251464), (7310, 248368), (7396, 245480), (8170, 222224), (9245, 196384), (10336, 175655), (11552, 157165), (11696, 155230), (12274, 147920), (12920, 140524), (13072, 138890), (13889, 130720), (14440, 125732), (14620, 124184), (14792, 122740), (15523, 116960), (16340, 111112), (18490, 98192), (23392, 77615), (24548, 73960), (25840, 70262), (26144, 69445), (27778, 65360), (28880, 62866), (29240, 62092), (29584, 61370), (30685, 59168), (31046, 58480), (31433, 57760), (32680, 55556), (35131, 51680), (36980, 49096)]