28733880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:533

約数の個数: 128

約数和(自身を含む): 99993600

約数和(自身を除く): 71259720

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, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 316, 395, 420, 433, 474, 553, 632, 790, 840, 866, 948, 1106, 1185, 1299, 1580, 1659, 1732, 1896, 2165, 2212, 2370, 2598, 2765, 3031, 3160, 3318, 3464, 4330, 4424, 4740, 5196, 5530, 6062, 6495, 6636, 8295, 8660, 9093, 9480, 10392, 11060, 12124, 12990, 13272, 15155, 16590, 17320, 18186, 22120, 24248, 25980, 30310, 33180, 34207, 36372, 45465, 51960, 60620, 66360, 68414, 72744, 90930, 102621, 121240, 136828, 171035, 181860, 205242, 239449, 273656, 342070, 363720, 410484, 478898, 513105, 684140, 718347, 820968, 957796, 1026210, 1197245, 1368280, 1436694, 1915592, 2052420, 2394490, 2873388, 3591735, 4104840, 4788980, 5746776, 7183470, 9577960, 14366940, 28733880]

約数ペア:

[(1, 28733880), (2, 14366940), (3, 9577960), (4, 7183470), (5, 5746776), (6, 4788980), (7, 4104840), (8, 3591735), (10, 2873388), (12, 2394490), (14, 2052420), (15, 1915592), (20, 1436694), (21, 1368280), (24, 1197245), (28, 1026210), (30, 957796), (35, 820968), (40, 718347), (42, 684140), (56, 513105), (60, 478898), (70, 410484), (79, 363720), (84, 342070), (105, 273656), (120, 239449), (140, 205242), (158, 181860), (168, 171035), (210, 136828), (237, 121240), (280, 102621), (316, 90930), (395, 72744), (420, 68414), (433, 66360), (474, 60620), (553, 51960), (632, 45465), (790, 36372), (840, 34207), (866, 33180), (948, 30310), (1106, 25980), (1185, 24248), (1299, 22120), (1580, 18186), (1659, 17320), (1732, 16590), (1896, 15155), (2165, 13272), (2212, 12990), (2370, 12124), (2598, 11060), (2765, 10392), (3031, 9480), (3160, 9093), (3318, 8660), (3464, 8295), (4330, 6636), (4424, 6495), (4740, 6062), (5196, 5530)]