838763900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1672

約数の個数: 108

約数和(自身を含む): 2035744704

約数和(自身を除く): 1196980804

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 169, 260, 310, 325, 338, 403, 620, 650, 676, 775, 806, 845, 1300, 1550, 1601, 1612, 1690, 2015, 3100, 3202, 3380, 4030, 4225, 5239, 6404, 8005, 8060, 8450, 10075, 10478, 16010, 16900, 20150, 20813, 20956, 26195, 32020, 40025, 40300, 41626, 49631, 52390, 80050, 83252, 99262, 104065, 104780, 130975, 160100, 198524, 208130, 248155, 261950, 270569, 416260, 496310, 520325, 523900, 541138, 645203, 992620, 1040650, 1082276, 1240775, 1290406, 1352845, 2081300, 2481550, 2580812, 2705690, 3226015, 4963100, 5411380, 6452030, 6764225, 8387639, 12904060, 13528450, 16130075, 16775278, 27056900, 32260150, 33550556, 41938195, 64520300, 83876390, 167752780, 209690975, 419381950, 838763900]

約数ペア:

[(1, 838763900), (2, 419381950), (4, 209690975), (5, 167752780), (10, 83876390), (13, 64520300), (20, 41938195), (25, 33550556), (26, 32260150), (31, 27056900), (50, 16775278), (52, 16130075), (62, 13528450), (65, 12904060), (100, 8387639), (124, 6764225), (130, 6452030), (155, 5411380), (169, 4963100), (260, 3226015), (310, 2705690), (325, 2580812), (338, 2481550), (403, 2081300), (620, 1352845), (650, 1290406), (676, 1240775), (775, 1082276), (806, 1040650), (845, 992620), (1300, 645203), (1550, 541138), (1601, 523900), (1612, 520325), (1690, 496310), (2015, 416260), (3100, 270569), (3202, 261950), (3380, 248155), (4030, 208130), (4225, 198524), (5239, 160100), (6404, 130975), (8005, 104780), (8060, 104065), (8450, 99262), (10075, 83252), (10478, 80050), (16010, 52390), (16900, 49631), (20150, 41626), (20813, 40300), (20956, 40025), (26195, 32020)]