404149980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{39857}}^1$

素因数の和:39895

約数の個数: 72

約数和(自身を含む): 1225394352

約数和(自身を除く): 821244372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 10140, 39857, 79714, 119571, 159428, 199285, 239142, 398570, 478284, 518141, 597855, 797140, 1036282, 1195710, 1554423, 2072564, 2391420, 2590705, 3108846, 5181410, 6217692, 6735833, 7772115, 10362820, 13471666, 15544230, 20207499, 26943332, 31088460, 33679165, 40414998, 67358330, 80829996, 101037495, 134716660, 202074990, 404149980]

約数ペア:

[(1, 404149980), (2, 202074990), (3, 134716660), (4, 101037495), (5, 80829996), (6, 67358330), (10, 40414998), (12, 33679165), (13, 31088460), (15, 26943332), (20, 20207499), (26, 15544230), (30, 13471666), (39, 10362820), (52, 7772115), (60, 6735833), (65, 6217692), (78, 5181410), (130, 3108846), (156, 2590705), (169, 2391420), (195, 2072564), (260, 1554423), (338, 1195710), (390, 1036282), (507, 797140), (676, 597855), (780, 518141), (845, 478284), (1014, 398570), (1690, 239142), (2028, 199285), (2535, 159428), (3380, 119571), (5070, 79714), (10140, 39857)]