257510040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2131}}^1$

素因数の和:2217

約数の個数: 128

約数和(自身を含む): 828921600

約数和(自身を除く): 571411560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 53, 57, 60, 76, 95, 106, 114, 120, 152, 159, 190, 212, 228, 265, 285, 318, 380, 424, 456, 530, 570, 636, 760, 795, 1007, 1060, 1140, 1272, 1590, 2014, 2120, 2131, 2280, 3021, 3180, 4028, 4262, 5035, 6042, 6360, 6393, 8056, 8524, 10070, 10655, 12084, 12786, 15105, 17048, 20140, 21310, 24168, 25572, 30210, 31965, 40280, 40489, 42620, 51144, 60420, 63930, 80978, 85240, 112943, 120840, 121467, 127860, 161956, 202445, 225886, 242934, 255720, 323912, 338829, 404890, 451772, 485868, 564715, 607335, 677658, 809780, 903544, 971736, 1129430, 1214670, 1355316, 1619560, 1694145, 2145917, 2258860, 2429340, 2710632, 3388290, 4291834, 4517720, 4858680, 6437751, 6776580, 8583668, 10729585, 12875502, 13553160, 17167336, 21459170, 25751004, 32188755, 42918340, 51502008, 64377510, 85836680, 128755020, 257510040]

約数ペア:

[(1, 257510040), (2, 128755020), (3, 85836680), (4, 64377510), (5, 51502008), (6, 42918340), (8, 32188755), (10, 25751004), (12, 21459170), (15, 17167336), (19, 13553160), (20, 12875502), (24, 10729585), (30, 8583668), (38, 6776580), (40, 6437751), (53, 4858680), (57, 4517720), (60, 4291834), (76, 3388290), (95, 2710632), (106, 2429340), (114, 2258860), (120, 2145917), (152, 1694145), (159, 1619560), (190, 1355316), (212, 1214670), (228, 1129430), (265, 971736), (285, 903544), (318, 809780), (380, 677658), (424, 607335), (456, 564715), (530, 485868), (570, 451772), (636, 404890), (760, 338829), (795, 323912), (1007, 255720), (1060, 242934), (1140, 225886), (1272, 202445), (1590, 161956), (2014, 127860), (2120, 121467), (2131, 120840), (2280, 112943), (3021, 85240), (3180, 80978), (4028, 63930), (4262, 60420), (5035, 51144), (6042, 42620), (6360, 40489), (6393, 40280), (8056, 31965), (8524, 30210), (10070, 25572), (10655, 24168), (12084, 21310), (12786, 20140), (15105, 17048)]