20724581640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{404461}}^1$

素因数の和:404543

約数の個数: 128

約数和(自身を含む): 72220734720

約数和(自身を除く): 51496153080

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, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4270, 5124, 6405, 7320, 8540, 10248, 12810, 17080, 25620, 51240, 404461, 808922, 1213383, 1617844, 2022305, 2426766, 2831227, 3235688, 4044610, 4853532, 5662454, 6066915, 8089220, 8493681, 9707064, 11324908, 12133830, 14156135, 16178440, 16987362, 22649816, 24267660, 24672121, 28312270, 33974724, 42468405, 48535320, 49344242, 56624540, 67949448, 74016363, 84936810, 98688484, 113249080, 123360605, 148032726, 169873620, 172704847, 197376968, 246721210, 296065452, 339747240, 345409694, 370081815, 493442420, 518114541, 592130904, 690819388, 740163630, 863524235, 986884840, 1036229082, 1381638776, 1480327260, 1727048470, 2072458164, 2590572705, 2960654520, 3454096940, 4144916328, 5181145410, 6908193880, 10362290820, 20724581640]

約数ペア:

[(1, 20724581640), (2, 10362290820), (3, 6908193880), (4, 5181145410), (5, 4144916328), (6, 3454096940), (7, 2960654520), (8, 2590572705), (10, 2072458164), (12, 1727048470), (14, 1480327260), (15, 1381638776), (20, 1036229082), (21, 986884840), (24, 863524235), (28, 740163630), (30, 690819388), (35, 592130904), (40, 518114541), (42, 493442420), (56, 370081815), (60, 345409694), (61, 339747240), (70, 296065452), (84, 246721210), (105, 197376968), (120, 172704847), (122, 169873620), (140, 148032726), (168, 123360605), (183, 113249080), (210, 98688484), (244, 84936810), (280, 74016363), (305, 67949448), (366, 56624540), (420, 49344242), (427, 48535320), (488, 42468405), (610, 33974724), (732, 28312270), (840, 24672121), (854, 24267660), (915, 22649816), (1220, 16987362), (1281, 16178440), (1464, 14156135), (1708, 12133830), (1830, 11324908), (2135, 9707064), (2440, 8493681), (2562, 8089220), (3416, 6066915), (3660, 5662454), (4270, 4853532), (5124, 4044610), (6405, 3235688), (7320, 2831227), (8540, 2426766), (10248, 2022305), (12810, 1617844), (17080, 1213383), (25620, 808922), (51240, 404461)]