19549660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4423}}^1$

素因数の和:4462

約数の個数: 48

約数和(自身を含む): 46823616

約数和(自身を除く): 27273956

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4423, 8846, 17692, 22115, 44230, 57499, 75191, 88460, 114998, 150382, 229996, 287495, 300764, 375955, 574990, 751910, 977483, 1149980, 1503820, 1954966, 3909932, 4887415, 9774830, 19549660]

約数ペア:

[(1, 19549660), (2, 9774830), (4, 4887415), (5, 3909932), (10, 1954966), (13, 1503820), (17, 1149980), (20, 977483), (26, 751910), (34, 574990), (52, 375955), (65, 300764), (68, 287495), (85, 229996), (130, 150382), (170, 114998), (221, 88460), (260, 75191), (340, 57499), (442, 44230), (884, 22115), (1105, 17692), (2210, 8846), (4420, 4423)]