415952380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{6421}}^1$

素因数の和:6550

約数の個数: 48

約数和(自身を含む): 906272640

約数和(自身を除く): 490320260

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 790, 820, 1580, 3239, 6421, 6478, 12842, 12956, 16195, 25684, 32105, 32390, 64210, 64780, 128420, 263261, 507259, 526522, 1014518, 1053044, 1316305, 2029036, 2536295, 2632610, 5072590, 5265220, 10145180, 20797619, 41595238, 83190476, 103988095, 207976190, 415952380]

約数ペア:

[(1, 415952380), (2, 207976190), (4, 103988095), (5, 83190476), (10, 41595238), (20, 20797619), (41, 10145180), (79, 5265220), (82, 5072590), (158, 2632610), (164, 2536295), (205, 2029036), (316, 1316305), (395, 1053044), (410, 1014518), (790, 526522), (820, 507259), (1580, 263261), (3239, 128420), (6421, 64780), (6478, 64210), (12842, 32390), (12956, 32105), (16195, 25684)]