90004720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2339}}^1$

素因数の和:2402

約数の個数: 80

約数和(自身を含む): 231547680

約数和(自身を除く): 141542960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 481, 520, 592, 740, 962, 1040, 1480, 1924, 2339, 2405, 2960, 3848, 4678, 4810, 7696, 9356, 9620, 11695, 18712, 19240, 23390, 30407, 37424, 38480, 46780, 60814, 86543, 93560, 121628, 152035, 173086, 187120, 243256, 304070, 346172, 432715, 486512, 608140, 692344, 865430, 1125059, 1216280, 1384688, 1730860, 2250118, 2432560, 3461720, 4500236, 5625295, 6923440, 9000472, 11250590, 18000944, 22501180, 45002360, 90004720]

約数ペア:

[(1, 90004720), (2, 45002360), (4, 22501180), (5, 18000944), (8, 11250590), (10, 9000472), (13, 6923440), (16, 5625295), (20, 4500236), (26, 3461720), (37, 2432560), (40, 2250118), (52, 1730860), (65, 1384688), (74, 1216280), (80, 1125059), (104, 865430), (130, 692344), (148, 608140), (185, 486512), (208, 432715), (260, 346172), (296, 304070), (370, 243256), (481, 187120), (520, 173086), (592, 152035), (740, 121628), (962, 93560), (1040, 86543), (1480, 60814), (1924, 46780), (2339, 38480), (2405, 37424), (2960, 30407), (3848, 23390), (4678, 19240), (4810, 18712), (7696, 11695), (9356, 9620)]