197898160

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 471219840

約数和(自身を除く): 273321680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 173, 181, 316, 346, 362, 395, 632, 692, 724, 790, 865, 905, 1264, 1384, 1448, 1580, 1730, 1810, 2768, 2896, 3160, 3460, 3620, 6320, 6920, 7240, 13667, 13840, 14299, 14480, 27334, 28598, 31313, 54668, 57196, 62626, 68335, 71495, 109336, 114392, 125252, 136670, 142990, 156565, 218672, 228784, 250504, 273340, 285980, 313130, 501008, 546680, 571960, 626260, 1093360, 1143920, 1252520, 2473727, 2505040, 4947454, 9894908, 12368635, 19789816, 24737270, 39579632, 49474540, 98949080, 197898160]

約数ペア:

[(1, 197898160), (2, 98949080), (4, 49474540), (5, 39579632), (8, 24737270), (10, 19789816), (16, 12368635), (20, 9894908), (40, 4947454), (79, 2505040), (80, 2473727), (158, 1252520), (173, 1143920), (181, 1093360), (316, 626260), (346, 571960), (362, 546680), (395, 501008), (632, 313130), (692, 285980), (724, 273340), (790, 250504), (865, 228784), (905, 218672), (1264, 156565), (1384, 142990), (1448, 136670), (1580, 125252), (1730, 114392), (1810, 109336), (2768, 71495), (2896, 68335), (3160, 62626), (3460, 57196), (3620, 54668), (6320, 31313), (6920, 28598), (7240, 27334), (13667, 14480), (13840, 14299)]