99887890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 197406720

約数和(自身を除く): 97518830

約数列:

[1, 2, 5, 10, 29, 31, 41, 58, 62, 82, 145, 155, 205, 271, 290, 310, 410, 542, 899, 1189, 1271, 1355, 1798, 2378, 2542, 2710, 4495, 5945, 6355, 7859, 8401, 8990, 11111, 11890, 12710, 15718, 16802, 22222, 36859, 39295, 42005, 55555, 73718, 78590, 84010, 111110, 184295, 243629, 322219, 344441, 368590, 487258, 644438, 688882, 1218145, 1611095, 1722205, 2436290, 3222190, 3444410, 9988789, 19977578, 49943945, 99887890]

約数ペア:

[(1, 99887890), (2, 49943945), (5, 19977578), (10, 9988789), (29, 3444410), (31, 3222190), (41, 2436290), (58, 1722205), (62, 1611095), (82, 1218145), (145, 688882), (155, 644438), (205, 487258), (271, 368590), (290, 344441), (310, 322219), (410, 243629), (542, 184295), (899, 111110), (1189, 84010), (1271, 78590), (1355, 73718), (1798, 55555), (2378, 42005), (2542, 39295), (2710, 36859), (4495, 22222), (5945, 16802), (6355, 15718), (7859, 12710), (8401, 11890), (8990, 11111)]