400906880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:239

約数の個数: 192

約数和(自身を含む): 1093962240

約数和(自身を除く): 693055360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 121, 124, 128, 155, 160, 167, 176, 220, 242, 248, 310, 320, 334, 341, 352, 440, 484, 496, 605, 620, 640, 668, 682, 704, 835, 880, 968, 992, 1210, 1240, 1336, 1364, 1408, 1670, 1705, 1760, 1837, 1936, 1984, 2420, 2480, 2672, 2728, 3340, 3410, 3520, 3674, 3751, 3872, 3968, 4840, 4960, 5177, 5344, 5456, 6680, 6820, 7040, 7348, 7502, 7744, 9185, 9680, 9920, 10354, 10688, 10912, 13360, 13640, 14696, 15004, 15488, 18370, 18755, 19360, 19840, 20207, 20708, 21376, 21824, 25885, 26720, 27280, 29392, 30008, 36740, 37510, 38720, 40414, 41416, 43648, 51770, 53440, 54560, 56947, 58784, 60016, 73480, 75020, 77440, 80828, 82832, 101035, 103540, 106880, 109120, 113894, 117568, 120032, 146960, 150040, 161656, 165664, 202070, 207080, 218240, 227788, 235136, 240064, 284735, 293920, 300080, 323312, 331328, 404140, 414160, 455576, 480128, 569470, 587840, 600160, 626417, 646624, 662656, 808280, 828320, 911152, 1138940, 1175680, 1200320, 1252834, 1293248, 1616560, 1656640, 1822304, 2277880, 2400640, 2505668, 2586496, 3132085, 3233120, 3313280, 3644608, 4555760, 5011336, 6264170, 6466240, 7289216, 9111520, 10022672, 12528340, 12932480, 18223040, 20045344, 25056680, 36446080, 40090688, 50113360, 80181376, 100226720, 200453440, 400906880]

約数ペア:

[(1, 400906880), (2, 200453440), (4, 100226720), (5, 80181376), (8, 50113360), (10, 40090688), (11, 36446080), (16, 25056680), (20, 20045344), (22, 18223040), (31, 12932480), (32, 12528340), (40, 10022672), (44, 9111520), (55, 7289216), (62, 6466240), (64, 6264170), (80, 5011336), (88, 4555760), (110, 3644608), (121, 3313280), (124, 3233120), (128, 3132085), (155, 2586496), (160, 2505668), (167, 2400640), (176, 2277880), (220, 1822304), (242, 1656640), (248, 1616560), (310, 1293248), (320, 1252834), (334, 1200320), (341, 1175680), (352, 1138940), (440, 911152), (484, 828320), (496, 808280), (605, 662656), (620, 646624), (640, 626417), (668, 600160), (682, 587840), (704, 569470), (835, 480128), (880, 455576), (968, 414160), (992, 404140), (1210, 331328), (1240, 323312), (1336, 300080), (1364, 293920), (1408, 284735), (1670, 240064), (1705, 235136), (1760, 227788), (1837, 218240), (1936, 207080), (1984, 202070), (2420, 165664), (2480, 161656), (2672, 150040), (2728, 146960), (3340, 120032), (3410, 117568), (3520, 113894), (3674, 109120), (3751, 106880), (3872, 103540), (3968, 101035), (4840, 82832), (4960, 80828), (5177, 77440), (5344, 75020), (5456, 73480), (6680, 60016), (6820, 58784), (7040, 56947), (7348, 54560), (7502, 53440), (7744, 51770), (9185, 43648), (9680, 41416), (9920, 40414), (10354, 38720), (10688, 37510), (10912, 36740), (13360, 30008), (13640, 29392), (14696, 27280), (15004, 26720), (15488, 25885), (18370, 21824), (18755, 21376), (19360, 20708), (19840, 20207)]