1640783980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2239}}^1\times {\mathrm{3331}}^1$

素因数の和:5590

約数の個数: 48

約数和(自身を含む): 3761694720

約数和(自身を除く): 2120910740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 2239, 3331, 4478, 6662, 8956, 11195, 13324, 16655, 22390, 24629, 33310, 36641, 44780, 49258, 66620, 73282, 98516, 123145, 146564, 183205, 246290, 366410, 492580, 732820, 7458109, 14916218, 29832436, 37290545, 74581090, 82039199, 149162180, 164078398, 328156796, 410195995, 820391990, 1640783980]

約数ペア:

[(1, 1640783980), (2, 820391990), (4, 410195995), (5, 328156796), (10, 164078398), (11, 149162180), (20, 82039199), (22, 74581090), (44, 37290545), (55, 29832436), (110, 14916218), (220, 7458109), (2239, 732820), (3331, 492580), (4478, 366410), (6662, 246290), (8956, 183205), (11195, 146564), (13324, 123145), (16655, 98516), (22390, 73282), (24629, 66620), (33310, 49258), (36641, 44780)]