640411392

素因数分解:

$2^8\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{727}}^1$

素因数の和:814

約数の個数: 144

約数和(自身を含む): 1809446912

約数和(自身を除く): 1169035520

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 37, 48, 62, 64, 74, 93, 96, 111, 124, 128, 148, 186, 192, 222, 248, 256, 296, 372, 384, 444, 496, 592, 727, 744, 768, 888, 992, 1147, 1184, 1454, 1488, 1776, 1984, 2181, 2294, 2368, 2908, 2976, 3441, 3552, 3968, 4362, 4588, 4736, 5816, 5952, 6882, 7104, 7936, 8724, 9176, 9472, 11632, 11904, 13764, 14208, 17448, 18352, 22537, 23264, 23808, 26899, 27528, 28416, 34896, 36704, 45074, 46528, 53798, 55056, 67611, 69792, 73408, 80697, 90148, 93056, 107596, 110112, 135222, 139584, 146816, 161394, 180296, 186112, 215192, 220224, 270444, 279168, 293632, 322788, 360592, 430384, 440448, 540888, 558336, 645576, 721184, 833869, 860768, 880896, 1081776, 1291152, 1442368, 1667738, 1721536, 2163552, 2501607, 2582304, 2884736, 3335476, 3443072, 4327104, 5003214, 5164608, 5769472, 6670952, 6886144, 8654208, 10006428, 10329216, 13341904, 17308416, 20012856, 20658432, 26683808, 40025712, 53367616, 80051424, 106735232, 160102848, 213470464, 320205696, 640411392]

約数ペア:

[(1, 640411392), (2, 320205696), (3, 213470464), (4, 160102848), (6, 106735232), (8, 80051424), (12, 53367616), (16, 40025712), (24, 26683808), (31, 20658432), (32, 20012856), (37, 17308416), (48, 13341904), (62, 10329216), (64, 10006428), (74, 8654208), (93, 6886144), (96, 6670952), (111, 5769472), (124, 5164608), (128, 5003214), (148, 4327104), (186, 3443072), (192, 3335476), (222, 2884736), (248, 2582304), (256, 2501607), (296, 2163552), (372, 1721536), (384, 1667738), (444, 1442368), (496, 1291152), (592, 1081776), (727, 880896), (744, 860768), (768, 833869), (888, 721184), (992, 645576), (1147, 558336), (1184, 540888), (1454, 440448), (1488, 430384), (1776, 360592), (1984, 322788), (2181, 293632), (2294, 279168), (2368, 270444), (2908, 220224), (2976, 215192), (3441, 186112), (3552, 180296), (3968, 161394), (4362, 146816), (4588, 139584), (4736, 135222), (5816, 110112), (5952, 107596), (6882, 93056), (7104, 90148), (7936, 80697), (8724, 73408), (9176, 69792), (9472, 67611), (11632, 55056), (11904, 53798), (13764, 46528), (14208, 45074), (17448, 36704), (18352, 34896), (22537, 28416), (23264, 27528), (23808, 26899)]