155213380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{631}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 381278016

約数和(自身を除く): 226064636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 490, 502, 631, 980, 1004, 1255, 1262, 1757, 2510, 2524, 3155, 3514, 4417, 5020, 6310, 7028, 8785, 8834, 12299, 12620, 17570, 17668, 22085, 24598, 30919, 35140, 44170, 49196, 61495, 61838, 88340, 122990, 123676, 154595, 158381, 245980, 309190, 316762, 618380, 633524, 791905, 1108667, 1583810, 2217334, 3167620, 4434668, 5543335, 7760669, 11086670, 15521338, 22173340, 31042676, 38803345, 77606690, 155213380]

約数ペア:

[(1, 155213380), (2, 77606690), (4, 38803345), (5, 31042676), (7, 22173340), (10, 15521338), (14, 11086670), (20, 7760669), (28, 5543335), (35, 4434668), (49, 3167620), (70, 2217334), (98, 1583810), (140, 1108667), (196, 791905), (245, 633524), (251, 618380), (490, 316762), (502, 309190), (631, 245980), (980, 158381), (1004, 154595), (1255, 123676), (1262, 122990), (1757, 88340), (2510, 61838), (2524, 61495), (3155, 49196), (3514, 44170), (4417, 35140), (5020, 30919), (6310, 24598), (7028, 22085), (8785, 17668), (8834, 17570), (12299, 12620)]