99899980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2731}}^1$

素因数の和:2830

約数の個数: 48

約数和(自身を含む): 220308480

約数和(自身を除く): 120408500

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 590, 620, 1180, 1829, 2731, 3658, 5462, 7316, 9145, 10924, 13655, 18290, 27310, 36580, 54620, 84661, 161129, 169322, 322258, 338644, 423305, 644516, 805645, 846610, 1611290, 1693220, 3222580, 4994999, 9989998, 19979996, 24974995, 49949990, 99899980]

約数ペア:

[(1, 99899980), (2, 49949990), (4, 24974995), (5, 19979996), (10, 9989998), (20, 4994999), (31, 3222580), (59, 1693220), (62, 1611290), (118, 846610), (124, 805645), (155, 644516), (236, 423305), (295, 338644), (310, 322258), (590, 169322), (620, 161129), (1180, 84661), (1829, 54620), (2731, 36580), (3658, 27310), (5462, 18290), (7316, 13655), (9145, 10924)]