19888680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23677}}^1$

素因数の和:23698

約数の個数: 64

約数和(自身を含む): 68192640

約数和(自身を除く): 48303960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23677, 47354, 71031, 94708, 118385, 142062, 165739, 189416, 236770, 284124, 331478, 355155, 473540, 497217, 568248, 662956, 710310, 828695, 947080, 994434, 1325912, 1420620, 1657390, 1988868, 2486085, 2841240, 3314780, 3977736, 4972170, 6629560, 9944340, 19888680]

約数ペア:

[(1, 19888680), (2, 9944340), (3, 6629560), (4, 4972170), (5, 3977736), (6, 3314780), (7, 2841240), (8, 2486085), (10, 1988868), (12, 1657390), (14, 1420620), (15, 1325912), (20, 994434), (21, 947080), (24, 828695), (28, 710310), (30, 662956), (35, 568248), (40, 497217), (42, 473540), (56, 355155), (60, 331478), (70, 284124), (84, 236770), (105, 189416), (120, 165739), (140, 142062), (168, 118385), (210, 94708), (280, 71031), (420, 47354), (840, 23677)]