65531440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 120

約数和(自身を含む): 170734608

約数和(自身を除く): 105203168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 131, 148, 169, 185, 208, 260, 262, 296, 338, 370, 481, 520, 524, 592, 655, 676, 740, 845, 962, 1040, 1048, 1310, 1352, 1480, 1690, 1703, 1924, 2096, 2405, 2620, 2704, 2960, 3380, 3406, 3848, 4810, 4847, 5240, 6253, 6760, 6812, 7696, 8515, 9620, 9694, 10480, 12506, 13520, 13624, 17030, 19240, 19388, 22139, 24235, 25012, 27248, 31265, 34060, 38480, 38776, 44278, 48470, 50024, 62530, 63011, 68120, 77552, 88556, 96940, 100048, 110695, 125060, 126022, 136240, 177112, 193880, 221390, 250120, 252044, 315055, 354224, 387760, 442780, 500240, 504088, 630110, 819143, 885560, 1008176, 1260220, 1638286, 1771120, 2520440, 3276572, 4095715, 5040880, 6553144, 8191430, 13106288, 16382860, 32765720, 65531440]

約数ペア:

[(1, 65531440), (2, 32765720), (4, 16382860), (5, 13106288), (8, 8191430), (10, 6553144), (13, 5040880), (16, 4095715), (20, 3276572), (26, 2520440), (37, 1771120), (40, 1638286), (52, 1260220), (65, 1008176), (74, 885560), (80, 819143), (104, 630110), (130, 504088), (131, 500240), (148, 442780), (169, 387760), (185, 354224), (208, 315055), (260, 252044), (262, 250120), (296, 221390), (338, 193880), (370, 177112), (481, 136240), (520, 126022), (524, 125060), (592, 110695), (655, 100048), (676, 96940), (740, 88556), (845, 77552), (962, 68120), (1040, 63011), (1048, 62530), (1310, 50024), (1352, 48470), (1480, 44278), (1690, 38776), (1703, 38480), (1924, 34060), (2096, 31265), (2405, 27248), (2620, 25012), (2704, 24235), (2960, 22139), (3380, 19388), (3406, 19240), (3848, 17030), (4810, 13624), (4847, 13520), (5240, 12506), (6253, 10480), (6760, 9694), (6812, 9620), (7696, 8515)]