81444580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 203664384

約数和(自身を除く): 122219804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 83, 86, 140, 163, 166, 172, 215, 301, 326, 332, 415, 430, 581, 602, 652, 815, 830, 860, 1141, 1162, 1204, 1505, 1630, 1660, 2282, 2324, 2905, 3010, 3260, 3569, 4564, 5705, 5810, 6020, 7009, 7138, 11410, 11620, 13529, 14018, 14276, 17845, 22820, 24983, 27058, 28036, 35045, 35690, 49063, 49966, 54116, 67645, 70090, 71380, 94703, 98126, 99932, 124915, 135290, 140180, 189406, 196252, 245315, 249830, 270580, 378812, 473515, 490630, 499660, 581747, 947030, 981260, 1163494, 1894060, 2326988, 2908735, 4072229, 5817470, 8144458, 11634940, 16288916, 20361145, 40722290, 81444580]

約数ペア:

[(1, 81444580), (2, 40722290), (4, 20361145), (5, 16288916), (7, 11634940), (10, 8144458), (14, 5817470), (20, 4072229), (28, 2908735), (35, 2326988), (43, 1894060), (70, 1163494), (83, 981260), (86, 947030), (140, 581747), (163, 499660), (166, 490630), (172, 473515), (215, 378812), (301, 270580), (326, 249830), (332, 245315), (415, 196252), (430, 189406), (581, 140180), (602, 135290), (652, 124915), (815, 99932), (830, 98126), (860, 94703), (1141, 71380), (1162, 70090), (1204, 67645), (1505, 54116), (1630, 49966), (1660, 49063), (2282, 35690), (2324, 35045), (2905, 28036), (3010, 27058), (3260, 24983), (3569, 22820), (4564, 17845), (5705, 14276), (5810, 14018), (6020, 13529), (7009, 11620), (7138, 11410)]