81390560

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1356

約数の個数: 96

約数和(自身を含む): 212611392

約数和(自身を除く): 131220832

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 340, 368, 391, 460, 544, 680, 736, 782, 920, 1301, 1360, 1564, 1840, 1955, 2602, 2720, 3128, 3680, 3910, 5204, 6256, 6505, 7820, 10408, 12512, 13010, 15640, 20816, 22117, 26020, 29923, 31280, 41632, 44234, 52040, 59846, 62560, 88468, 104080, 110585, 119692, 149615, 176936, 208160, 221170, 239384, 299230, 353872, 442340, 478768, 508691, 598460, 707744, 884680, 957536, 1017382, 1196920, 1769360, 2034764, 2393840, 2543455, 3538720, 4069528, 4787680, 5086910, 8139056, 10173820, 16278112, 20347640, 40695280, 81390560]

約数ペア:

[(1, 81390560), (2, 40695280), (4, 20347640), (5, 16278112), (8, 10173820), (10, 8139056), (16, 5086910), (17, 4787680), (20, 4069528), (23, 3538720), (32, 2543455), (34, 2393840), (40, 2034764), (46, 1769360), (68, 1196920), (80, 1017382), (85, 957536), (92, 884680), (115, 707744), (136, 598460), (160, 508691), (170, 478768), (184, 442340), (230, 353872), (272, 299230), (340, 239384), (368, 221170), (391, 208160), (460, 176936), (544, 149615), (680, 119692), (736, 110585), (782, 104080), (920, 88468), (1301, 62560), (1360, 59846), (1564, 52040), (1840, 44234), (1955, 41632), (2602, 31280), (2720, 29923), (3128, 26020), (3680, 22117), (3910, 20816), (5204, 15640), (6256, 13010), (6505, 12512), (7820, 10408)]