1681221910

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 3181420800

約数和(自身を除く): 1500198890

約数列:

[1, 2, 5, 10, 37, 74, 79, 113, 158, 185, 226, 370, 395, 509, 565, 790, 1018, 1130, 2545, 2923, 4181, 5090, 5846, 8362, 8927, 14615, 17854, 18833, 20905, 29230, 37666, 40211, 41810, 44635, 57517, 80422, 89270, 94165, 115034, 188330, 201055, 287585, 330299, 402110, 575170, 660598, 1487807, 1651495, 2128129, 2975614, 3302990, 4256258, 4543843, 7439035, 9087686, 10640645, 14878070, 21281290, 22719215, 45438430, 168122191, 336244382, 840610955, 1681221910]

約数ペア:

[(1, 1681221910), (2, 840610955), (5, 336244382), (10, 168122191), (37, 45438430), (74, 22719215), (79, 21281290), (113, 14878070), (158, 10640645), (185, 9087686), (226, 7439035), (370, 4543843), (395, 4256258), (509, 3302990), (565, 2975614), (790, 2128129), (1018, 1651495), (1130, 1487807), (2545, 660598), (2923, 575170), (4181, 402110), (5090, 330299), (5846, 287585), (8362, 201055), (8927, 188330), (14615, 115034), (17854, 94165), (18833, 89270), (20905, 80422), (29230, 57517), (37666, 44635), (40211, 41810)]