40496980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 92171520

約数和(自身を除く): 51674540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 79, 95, 142, 158, 190, 284, 316, 355, 361, 380, 395, 710, 722, 790, 1349, 1420, 1444, 1501, 1580, 1805, 2698, 3002, 3610, 5396, 5609, 6004, 6745, 7220, 7505, 11218, 13490, 15010, 22436, 25631, 26980, 28045, 28519, 30020, 51262, 56090, 57038, 102524, 106571, 112180, 114076, 128155, 142595, 213142, 256310, 285190, 426284, 512620, 532855, 570380, 1065710, 2024849, 2131420, 4049698, 8099396, 10124245, 20248490, 40496980]

約数ペア:

[(1, 40496980), (2, 20248490), (4, 10124245), (5, 8099396), (10, 4049698), (19, 2131420), (20, 2024849), (38, 1065710), (71, 570380), (76, 532855), (79, 512620), (95, 426284), (142, 285190), (158, 256310), (190, 213142), (284, 142595), (316, 128155), (355, 114076), (361, 112180), (380, 106571), (395, 102524), (710, 57038), (722, 56090), (790, 51262), (1349, 30020), (1420, 28519), (1444, 28045), (1501, 26980), (1580, 25631), (1805, 22436), (2698, 15010), (3002, 13490), (3610, 11218), (5396, 7505), (5609, 7220), (6004, 6745)]