42640280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 100794240

約数和(自身を除く): 58153960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 613, 740, 940, 1226, 1480, 1739, 1880, 2452, 3065, 3478, 4904, 6130, 6956, 8695, 12260, 13912, 17390, 22681, 24520, 28811, 34780, 45362, 57622, 69560, 90724, 113405, 115244, 144055, 181448, 226810, 230488, 288110, 453620, 576220, 907240, 1066007, 1152440, 2132014, 4264028, 5330035, 8528056, 10660070, 21320140, 42640280]

約数ペア:

[(1, 42640280), (2, 21320140), (4, 10660070), (5, 8528056), (8, 5330035), (10, 4264028), (20, 2132014), (37, 1152440), (40, 1066007), (47, 907240), (74, 576220), (94, 453620), (148, 288110), (185, 230488), (188, 226810), (235, 181448), (296, 144055), (370, 115244), (376, 113405), (470, 90724), (613, 69560), (740, 57622), (940, 45362), (1226, 34780), (1480, 28811), (1739, 24520), (1880, 22681), (2452, 17390), (3065, 13912), (3478, 12260), (4904, 8695), (6130, 6956)]