25680720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8231}}^1$

素因数の和:8260

約数の個数: 80

約数和(自身を含む): 85744512

約数和(自身を除く): 60063792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 8231, 16462, 24693, 32924, 41155, 49386, 65848, 82310, 98772, 107003, 123465, 131696, 164620, 197544, 214006, 246930, 321009, 329240, 395088, 428012, 493860, 535015, 642018, 658480, 856024, 987720, 1070030, 1284036, 1605045, 1712048, 1975440, 2140060, 2568072, 3210090, 4280120, 5136144, 6420180, 8560240, 12840360, 25680720]

約数ペア:

[(1, 25680720), (2, 12840360), (3, 8560240), (4, 6420180), (5, 5136144), (6, 4280120), (8, 3210090), (10, 2568072), (12, 2140060), (13, 1975440), (15, 1712048), (16, 1605045), (20, 1284036), (24, 1070030), (26, 987720), (30, 856024), (39, 658480), (40, 642018), (48, 535015), (52, 493860), (60, 428012), (65, 395088), (78, 329240), (80, 321009), (104, 246930), (120, 214006), (130, 197544), (156, 164620), (195, 131696), (208, 123465), (240, 107003), (260, 98772), (312, 82310), (390, 65848), (520, 49386), (624, 41155), (780, 32924), (1040, 24693), (1560, 16462), (3120, 8231)]