820007750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3163}}^1$

素因数の和:3258

約数の個数: 64

約数和(自身を含む): 1652519232

約数和(自身を除く): 832511482

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 61, 85, 122, 125, 170, 250, 305, 425, 610, 850, 1037, 1525, 2074, 2125, 3050, 3163, 4250, 5185, 6326, 7625, 10370, 15250, 15815, 25925, 31630, 51850, 53771, 79075, 107542, 129625, 158150, 192943, 259250, 268855, 385886, 395375, 537710, 790750, 964715, 1344275, 1929430, 2688550, 3280031, 4823575, 6560062, 6721375, 9647150, 13442750, 16400155, 24117875, 32800310, 48235750, 82000775, 164001550, 410003875, 820007750]

約数ペア:

[(1, 820007750), (2, 410003875), (5, 164001550), (10, 82000775), (17, 48235750), (25, 32800310), (34, 24117875), (50, 16400155), (61, 13442750), (85, 9647150), (122, 6721375), (125, 6560062), (170, 4823575), (250, 3280031), (305, 2688550), (425, 1929430), (610, 1344275), (850, 964715), (1037, 790750), (1525, 537710), (2074, 395375), (2125, 385886), (3050, 268855), (3163, 259250), (4250, 192943), (5185, 158150), (6326, 129625), (7625, 107542), (10370, 79075), (15250, 53771), (15815, 51850), (25925, 31630)]