81260400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5209}}^1$

素因数の和:5243

約数の個数: 120

約数和(自身を含む): 280381360

約数和(自身を除く): 199120960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 104, 120, 130, 150, 156, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 520, 600, 624, 650, 780, 975, 1040, 1200, 1300, 1560, 1950, 2600, 3120, 3900, 5200, 5209, 7800, 10418, 15600, 15627, 20836, 26045, 31254, 41672, 52090, 62508, 67717, 78135, 83344, 104180, 125016, 130225, 135434, 156270, 203151, 208360, 250032, 260450, 270868, 312540, 338585, 390675, 406302, 416720, 520900, 541736, 625080, 677170, 781350, 812604, 1015755, 1041800, 1083472, 1250160, 1354340, 1562700, 1625208, 1692925, 2031510, 2083600, 2708680, 3125400, 3250416, 3385850, 4063020, 5078775, 5417360, 6250800, 6771700, 8126040, 10157550, 13543400, 16252080, 20315100, 27086800, 40630200, 81260400]

約数ペア:

[(1, 81260400), (2, 40630200), (3, 27086800), (4, 20315100), (5, 16252080), (6, 13543400), (8, 10157550), (10, 8126040), (12, 6771700), (13, 6250800), (15, 5417360), (16, 5078775), (20, 4063020), (24, 3385850), (25, 3250416), (26, 3125400), (30, 2708680), (39, 2083600), (40, 2031510), (48, 1692925), (50, 1625208), (52, 1562700), (60, 1354340), (65, 1250160), (75, 1083472), (78, 1041800), (80, 1015755), (100, 812604), (104, 781350), (120, 677170), (130, 625080), (150, 541736), (156, 520900), (195, 416720), (200, 406302), (208, 390675), (240, 338585), (260, 312540), (300, 270868), (312, 260450), (325, 250032), (390, 208360), (400, 203151), (520, 156270), (600, 135434), (624, 130225), (650, 125016), (780, 104180), (975, 83344), (1040, 78135), (1200, 67717), (1300, 62508), (1560, 52090), (1950, 41672), (2600, 31254), (3120, 26045), (3900, 20836), (5200, 15627), (5209, 15600), (7800, 10418)]