42171740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2659}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 96972960

約数和(自身を除く): 54801220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 2659, 3172, 3965, 5318, 7930, 10636, 13295, 15860, 26590, 34567, 53180, 69134, 138268, 162199, 172835, 324398, 345670, 648796, 691340, 810995, 1621990, 2108587, 3243980, 4217174, 8434348, 10542935, 21085870, 42171740]

約数ペア:

[(1, 42171740), (2, 21085870), (4, 10542935), (5, 8434348), (10, 4217174), (13, 3243980), (20, 2108587), (26, 1621990), (52, 810995), (61, 691340), (65, 648796), (122, 345670), (130, 324398), (244, 172835), (260, 162199), (305, 138268), (610, 69134), (793, 53180), (1220, 34567), (1586, 26590), (2659, 15860), (3172, 13295), (3965, 10636), (5318, 7930)]