215757520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:785

約数の個数: 120

約数和(自身を含む): 569963520

約数和(自身を除く): 354206000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 310, 341, 440, 484, 496, 605, 620, 682, 719, 880, 968, 1210, 1240, 1364, 1438, 1705, 1936, 2420, 2480, 2728, 2876, 3410, 3595, 3751, 4840, 5456, 5752, 6820, 7190, 7502, 7909, 9680, 11504, 13640, 14380, 15004, 15818, 18755, 22289, 27280, 28760, 30008, 31636, 37510, 39545, 44578, 57520, 60016, 63272, 75020, 79090, 86999, 89156, 111445, 126544, 150040, 158180, 173998, 178312, 222890, 245179, 300080, 316360, 347996, 356624, 434995, 445780, 490358, 632720, 695992, 869990, 891560, 980716, 1225895, 1391984, 1739980, 1783120, 1961432, 2451790, 2696969, 3479960, 3922864, 4903580, 5393938, 6959920, 9807160, 10787876, 13484845, 19614320, 21575752, 26969690, 43151504, 53939380, 107878760, 215757520]

約数ペア:

[(1, 215757520), (2, 107878760), (4, 53939380), (5, 43151504), (8, 26969690), (10, 21575752), (11, 19614320), (16, 13484845), (20, 10787876), (22, 9807160), (31, 6959920), (40, 5393938), (44, 4903580), (55, 3922864), (62, 3479960), (80, 2696969), (88, 2451790), (110, 1961432), (121, 1783120), (124, 1739980), (155, 1391984), (176, 1225895), (220, 980716), (242, 891560), (248, 869990), (310, 695992), (341, 632720), (440, 490358), (484, 445780), (496, 434995), (605, 356624), (620, 347996), (682, 316360), (719, 300080), (880, 245179), (968, 222890), (1210, 178312), (1240, 173998), (1364, 158180), (1438, 150040), (1705, 126544), (1936, 111445), (2420, 89156), (2480, 86999), (2728, 79090), (2876, 75020), (3410, 63272), (3595, 60016), (3751, 57520), (4840, 44578), (5456, 39545), (5752, 37510), (6820, 31636), (7190, 30008), (7502, 28760), (7909, 27280), (9680, 22289), (11504, 18755), (13640, 15818), (14380, 15004)]