28221700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1277}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 69886152

約数和(自身を除く): 41664452

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 1105, 1277, 1300, 1700, 2210, 2554, 4420, 5108, 5525, 6385, 11050, 12770, 16601, 21709, 22100, 25540, 31925, 33202, 43418, 63850, 66404, 83005, 86836, 108545, 127700, 166010, 217090, 282217, 332020, 415025, 434180, 542725, 564434, 830050, 1085450, 1128868, 1411085, 1660100, 2170900, 2822170, 5644340, 7055425, 14110850, 28221700]

約数ペア:

[(1, 28221700), (2, 14110850), (4, 7055425), (5, 5644340), (10, 2822170), (13, 2170900), (17, 1660100), (20, 1411085), (25, 1128868), (26, 1085450), (34, 830050), (50, 564434), (52, 542725), (65, 434180), (68, 415025), (85, 332020), (100, 282217), (130, 217090), (170, 166010), (221, 127700), (260, 108545), (325, 86836), (340, 83005), (425, 66404), (442, 63850), (650, 43418), (850, 33202), (884, 31925), (1105, 25540), (1277, 22100), (1300, 21709), (1700, 16601), (2210, 12770), (2554, 11050), (4420, 6385), (5108, 5525)]