71404780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^2$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 161610624

約数和(自身を除く): 90205844

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 53, 62, 82, 106, 124, 155, 164, 205, 212, 265, 310, 410, 530, 620, 820, 1060, 1271, 1643, 2173, 2542, 2809, 3286, 4346, 5084, 5618, 6355, 6572, 8215, 8692, 10865, 11236, 12710, 14045, 16430, 21730, 25420, 28090, 32860, 43460, 56180, 67363, 87079, 115169, 134726, 174158, 230338, 269452, 336815, 348316, 435395, 460676, 575845, 673630, 870790, 1151690, 1347260, 1741580, 2303380, 3570239, 7140478, 14280956, 17851195, 35702390, 71404780]

約数ペア:

[(1, 71404780), (2, 35702390), (4, 17851195), (5, 14280956), (10, 7140478), (20, 3570239), (31, 2303380), (41, 1741580), (53, 1347260), (62, 1151690), (82, 870790), (106, 673630), (124, 575845), (155, 460676), (164, 435395), (205, 348316), (212, 336815), (265, 269452), (310, 230338), (410, 174158), (530, 134726), (620, 115169), (820, 87079), (1060, 67363), (1271, 56180), (1643, 43460), (2173, 32860), (2542, 28090), (2809, 25420), (3286, 21730), (4346, 16430), (5084, 14045), (5618, 12710), (6355, 11236), (6572, 10865), (8215, 8692)]