644606520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{823}}^1$

素因数の和:1005

約数の個数: 128

約数和(自身を含む): 1986301440

約数和(自身を除く): 1341694920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 107, 120, 122, 183, 214, 244, 305, 321, 366, 428, 488, 535, 610, 642, 732, 823, 856, 915, 1070, 1220, 1284, 1464, 1605, 1646, 1830, 2140, 2440, 2469, 2568, 3210, 3292, 3660, 4115, 4280, 4938, 6420, 6527, 6584, 7320, 8230, 9876, 12345, 12840, 13054, 16460, 19581, 19752, 24690, 26108, 32635, 32920, 39162, 49380, 50203, 52216, 65270, 78324, 88061, 97905, 98760, 100406, 130540, 150609, 156648, 176122, 195810, 200812, 251015, 261080, 264183, 301218, 352244, 391620, 401624, 440305, 502030, 528366, 602436, 704488, 753045, 783240, 880610, 1004060, 1056732, 1204872, 1320915, 1506090, 1761220, 2008120, 2113464, 2641830, 3012180, 3522440, 5283660, 5371721, 6024360, 10567320, 10743442, 16115163, 21486884, 26858605, 32230326, 42973768, 53717210, 64460652, 80575815, 107434420, 128921304, 161151630, 214868840, 322303260, 644606520]

約数ペア:

[(1, 644606520), (2, 322303260), (3, 214868840), (4, 161151630), (5, 128921304), (6, 107434420), (8, 80575815), (10, 64460652), (12, 53717210), (15, 42973768), (20, 32230326), (24, 26858605), (30, 21486884), (40, 16115163), (60, 10743442), (61, 10567320), (107, 6024360), (120, 5371721), (122, 5283660), (183, 3522440), (214, 3012180), (244, 2641830), (305, 2113464), (321, 2008120), (366, 1761220), (428, 1506090), (488, 1320915), (535, 1204872), (610, 1056732), (642, 1004060), (732, 880610), (823, 783240), (856, 753045), (915, 704488), (1070, 602436), (1220, 528366), (1284, 502030), (1464, 440305), (1605, 401624), (1646, 391620), (1830, 352244), (2140, 301218), (2440, 264183), (2469, 261080), (2568, 251015), (3210, 200812), (3292, 195810), (3660, 176122), (4115, 156648), (4280, 150609), (4938, 130540), (6420, 100406), (6527, 98760), (6584, 97905), (7320, 88061), (8230, 78324), (9876, 65270), (12345, 52216), (12840, 50203), (13054, 49380), (16460, 39162), (19581, 32920), (19752, 32635), (24690, 26108)]