29215780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 69471360

約数和(自身を除く): 40255580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 79, 82, 110, 158, 164, 205, 220, 316, 395, 410, 451, 790, 820, 869, 902, 1580, 1681, 1738, 1804, 2255, 3239, 3362, 3476, 4345, 4510, 6478, 6724, 8405, 8690, 9020, 12956, 16195, 16810, 17380, 18491, 32390, 33620, 35629, 36982, 64780, 71258, 73964, 92455, 132799, 142516, 178145, 184910, 265598, 356290, 369820, 531196, 663995, 712580, 1327990, 1460789, 2655980, 2921578, 5843156, 7303945, 14607890, 29215780]

約数ペア:

[(1, 29215780), (2, 14607890), (4, 7303945), (5, 5843156), (10, 2921578), (11, 2655980), (20, 1460789), (22, 1327990), (41, 712580), (44, 663995), (55, 531196), (79, 369820), (82, 356290), (110, 265598), (158, 184910), (164, 178145), (205, 142516), (220, 132799), (316, 92455), (395, 73964), (410, 71258), (451, 64780), (790, 36982), (820, 35629), (869, 33620), (902, 32390), (1580, 18491), (1681, 17380), (1738, 16810), (1804, 16195), (2255, 12956), (3239, 9020), (3362, 8690), (3476, 8405), (4345, 6724), (4510, 6478)]