31900960

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:355

約数の個数: 144

約数和(自身を含む): 94716216

約数和(自身を除く): 62815256

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 313, 364, 392, 416, 455, 490, 520, 560, 626, 637, 728, 784, 910, 980, 1040, 1120, 1252, 1274, 1456, 1565, 1568, 1820, 1960, 2080, 2191, 2504, 2548, 2912, 3130, 3185, 3640, 3920, 4069, 4382, 5008, 5096, 6260, 6370, 7280, 7840, 8138, 8764, 10016, 10192, 10955, 12520, 12740, 14560, 15337, 16276, 17528, 20345, 20384, 21910, 25040, 25480, 28483, 30674, 32552, 35056, 40690, 43820, 50080, 50960, 56966, 61348, 65104, 70112, 76685, 81380, 87640, 101920, 113932, 122696, 130208, 142415, 153370, 162760, 175280, 199381, 227864, 245392, 284830, 306740, 325520, 350560, 398762, 455728, 490784, 569660, 613480, 651040, 797524, 911456, 996905, 1139320, 1226960, 1595048, 1993810, 2278640, 2453920, 3190096, 3987620, 4557280, 6380192, 7975240, 15950480, 31900960]

約数ペア:

[(1, 31900960), (2, 15950480), (4, 7975240), (5, 6380192), (7, 4557280), (8, 3987620), (10, 3190096), (13, 2453920), (14, 2278640), (16, 1993810), (20, 1595048), (26, 1226960), (28, 1139320), (32, 996905), (35, 911456), (40, 797524), (49, 651040), (52, 613480), (56, 569660), (65, 490784), (70, 455728), (80, 398762), (91, 350560), (98, 325520), (104, 306740), (112, 284830), (130, 245392), (140, 227864), (160, 199381), (182, 175280), (196, 162760), (208, 153370), (224, 142415), (245, 130208), (260, 122696), (280, 113932), (313, 101920), (364, 87640), (392, 81380), (416, 76685), (455, 70112), (490, 65104), (520, 61348), (560, 56966), (626, 50960), (637, 50080), (728, 43820), (784, 40690), (910, 35056), (980, 32552), (1040, 30674), (1120, 28483), (1252, 25480), (1274, 25040), (1456, 21910), (1565, 20384), (1568, 20345), (1820, 17528), (1960, 16276), (2080, 15337), (2191, 14560), (2504, 12740), (2548, 12520), (2912, 10955), (3130, 10192), (3185, 10016), (3640, 8764), (3920, 8138), (4069, 7840), (4382, 7280), (5008, 6370), (5096, 6260)]