19374940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1733}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 44862048

約数和(自身を除く): 25487108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1733, 2236, 2795, 3466, 5590, 6932, 8665, 11180, 17330, 22529, 34660, 45058, 74519, 90116, 112645, 149038, 225290, 298076, 372595, 450580, 745190, 968747, 1490380, 1937494, 3874988, 4843735, 9687470, 19374940]

約数ペア:

[(1, 19374940), (2, 9687470), (4, 4843735), (5, 3874988), (10, 1937494), (13, 1490380), (20, 968747), (26, 745190), (43, 450580), (52, 372595), (65, 298076), (86, 225290), (130, 149038), (172, 112645), (215, 90116), (260, 74519), (430, 45058), (559, 34660), (860, 22529), (1118, 17330), (1733, 11180), (2236, 8665), (2795, 6932), (3466, 5590)]