28207400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 74474400

約数和(自身を除く): 46267000

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 104, 130, 152, 190, 200, 247, 260, 325, 380, 475, 494, 520, 571, 650, 760, 950, 988, 1142, 1235, 1300, 1900, 1976, 2284, 2470, 2600, 2855, 3800, 4568, 4940, 5710, 6175, 7423, 9880, 10849, 11420, 12350, 14275, 14846, 21698, 22840, 24700, 28550, 29692, 37115, 43396, 49400, 54245, 57100, 59384, 74230, 86792, 108490, 114200, 141037, 148460, 185575, 216980, 271225, 282074, 296920, 371150, 433960, 542450, 564148, 705185, 742300, 1084900, 1128296, 1410370, 1484600, 2169800, 2820740, 3525925, 5641480, 7051850, 14103700, 28207400]

約数ペア:

[(1, 28207400), (2, 14103700), (4, 7051850), (5, 5641480), (8, 3525925), (10, 2820740), (13, 2169800), (19, 1484600), (20, 1410370), (25, 1128296), (26, 1084900), (38, 742300), (40, 705185), (50, 564148), (52, 542450), (65, 433960), (76, 371150), (95, 296920), (100, 282074), (104, 271225), (130, 216980), (152, 185575), (190, 148460), (200, 141037), (247, 114200), (260, 108490), (325, 86792), (380, 74230), (475, 59384), (494, 57100), (520, 54245), (571, 49400), (650, 43396), (760, 37115), (950, 29692), (988, 28550), (1142, 24700), (1235, 22840), (1300, 21698), (1900, 14846), (1976, 14275), (2284, 12350), (2470, 11420), (2600, 10849), (2855, 9880), (3800, 7423), (4568, 6175), (4940, 5710)]