161390320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3167}}^1$

素因数の和:3207

約数の個数: 120

約数和(自身を含む): 470219904

約数和(自身を除く): 308829584

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1456, 1820, 1960, 2548, 3167, 3185, 3640, 3920, 5096, 6334, 6370, 7280, 10192, 12668, 12740, 15835, 22169, 25336, 25480, 31670, 41171, 44338, 50672, 50960, 63340, 82342, 88676, 110845, 126680, 155183, 164684, 177352, 205855, 221690, 253360, 288197, 310366, 329368, 354704, 411710, 443380, 576394, 620732, 658736, 775915, 823420, 886760, 1152788, 1241464, 1440985, 1551830, 1646840, 1773520, 2017379, 2305576, 2482928, 2881970, 3103660, 3293680, 4034758, 4611152, 5763940, 6207320, 8069516, 10086895, 11527880, 12414640, 16139032, 20173790, 23055760, 32278064, 40347580, 80695160, 161390320]

約数ペア:

[(1, 161390320), (2, 80695160), (4, 40347580), (5, 32278064), (7, 23055760), (8, 20173790), (10, 16139032), (13, 12414640), (14, 11527880), (16, 10086895), (20, 8069516), (26, 6207320), (28, 5763940), (35, 4611152), (40, 4034758), (49, 3293680), (52, 3103660), (56, 2881970), (65, 2482928), (70, 2305576), (80, 2017379), (91, 1773520), (98, 1646840), (104, 1551830), (112, 1440985), (130, 1241464), (140, 1152788), (182, 886760), (196, 823420), (208, 775915), (245, 658736), (260, 620732), (280, 576394), (364, 443380), (392, 411710), (455, 354704), (490, 329368), (520, 310366), (560, 288197), (637, 253360), (728, 221690), (784, 205855), (910, 177352), (980, 164684), (1040, 155183), (1274, 126680), (1456, 110845), (1820, 88676), (1960, 82342), (2548, 63340), (3167, 50960), (3185, 50672), (3640, 44338), (3920, 41171), (5096, 31670), (6334, 25480), (6370, 25336), (7280, 22169), (10192, 15835), (12668, 12740)]