278213240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1\times {\mathrm{643}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 650311200

約数和(自身を除く): 372097960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 373, 580, 643, 746, 1160, 1286, 1492, 1865, 2572, 2984, 3215, 3730, 5144, 6430, 7460, 10817, 12860, 14920, 18647, 21634, 25720, 37294, 43268, 54085, 74588, 86536, 93235, 108170, 149176, 186470, 216340, 239839, 372940, 432680, 479678, 745880, 959356, 1199195, 1918712, 2398390, 4796780, 6955331, 9593560, 13910662, 27821324, 34776655, 55642648, 69553310, 139106620, 278213240]

約数ペア:

[(1, 278213240), (2, 139106620), (4, 69553310), (5, 55642648), (8, 34776655), (10, 27821324), (20, 13910662), (29, 9593560), (40, 6955331), (58, 4796780), (116, 2398390), (145, 1918712), (232, 1199195), (290, 959356), (373, 745880), (580, 479678), (643, 432680), (746, 372940), (1160, 239839), (1286, 216340), (1492, 186470), (1865, 149176), (2572, 108170), (2984, 93235), (3215, 86536), (3730, 74588), (5144, 54085), (6430, 43268), (7460, 37294), (10817, 25720), (12860, 21634), (14920, 18647)]