25457720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 63367920

約数和(自身を除く): 37910200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 43, 76, 82, 86, 95, 152, 164, 172, 190, 205, 215, 328, 344, 361, 380, 410, 430, 722, 760, 779, 817, 820, 860, 1444, 1558, 1634, 1640, 1720, 1763, 1805, 2888, 3116, 3268, 3526, 3610, 3895, 4085, 6232, 6536, 7052, 7220, 7790, 8170, 8815, 14104, 14440, 14801, 15523, 15580, 16340, 17630, 29602, 31046, 31160, 32680, 33497, 35260, 59204, 62092, 66994, 70520, 74005, 77615, 118408, 124184, 133988, 148010, 155230, 167485, 267976, 296020, 310460, 334970, 592040, 620920, 636443, 669940, 1272886, 1339880, 2545772, 3182215, 5091544, 6364430, 12728860, 25457720]

約数ペア:

[(1, 25457720), (2, 12728860), (4, 6364430), (5, 5091544), (8, 3182215), (10, 2545772), (19, 1339880), (20, 1272886), (38, 669940), (40, 636443), (41, 620920), (43, 592040), (76, 334970), (82, 310460), (86, 296020), (95, 267976), (152, 167485), (164, 155230), (172, 148010), (190, 133988), (205, 124184), (215, 118408), (328, 77615), (344, 74005), (361, 70520), (380, 66994), (410, 62092), (430, 59204), (722, 35260), (760, 33497), (779, 32680), (817, 31160), (820, 31046), (860, 29602), (1444, 17630), (1558, 16340), (1634, 15580), (1640, 15523), (1720, 14801), (1763, 14440), (1805, 14104), (2888, 8815), (3116, 8170), (3268, 7790), (3526, 7220), (3610, 7052), (3895, 6536), (4085, 6232)]