1997531460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{631}}^1$

素因数の和:1098

約数の個数: 144

約数和(自身を含む): 6225098880

約数和(自身を除く): 4227567420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 409, 430, 516, 631, 645, 774, 818, 860, 1227, 1262, 1290, 1548, 1636, 1893, 1935, 2045, 2454, 2524, 2580, 3155, 3681, 3786, 3870, 4090, 4908, 5679, 6135, 6310, 7362, 7572, 7740, 8180, 9465, 11358, 12270, 12620, 14724, 17587, 18405, 18930, 22716, 24540, 27133, 28395, 35174, 36810, 37860, 52761, 54266, 56790, 70348, 73620, 81399, 87935, 105522, 108532, 113580, 135665, 158283, 162798, 175870, 211044, 244197, 258079, 263805, 271330, 316566, 325596, 351740, 406995, 488394, 516158, 527610, 542660, 633132, 774237, 791415, 813990, 976788, 1032316, 1055220, 1220985, 1290395, 1548474, 1582830, 1627980, 2322711, 2441970, 2580790, 3096948, 3165660, 3871185, 4645422, 4883940, 5161580, 7742370, 9290844, 11097397, 11613555, 15484740, 22194794, 23227110, 33292191, 44389588, 46454220, 55486985, 66584382, 99876573, 110973970, 133168764, 166460955, 199753146, 221947940, 332921910, 399506292, 499382865, 665843820, 998765730, 1997531460]

約数ペア:

[(1, 1997531460), (2, 998765730), (3, 665843820), (4, 499382865), (5, 399506292), (6, 332921910), (9, 221947940), (10, 199753146), (12, 166460955), (15, 133168764), (18, 110973970), (20, 99876573), (30, 66584382), (36, 55486985), (43, 46454220), (45, 44389588), (60, 33292191), (86, 23227110), (90, 22194794), (129, 15484740), (172, 11613555), (180, 11097397), (215, 9290844), (258, 7742370), (387, 5161580), (409, 4883940), (430, 4645422), (516, 3871185), (631, 3165660), (645, 3096948), (774, 2580790), (818, 2441970), (860, 2322711), (1227, 1627980), (1262, 1582830), (1290, 1548474), (1548, 1290395), (1636, 1220985), (1893, 1055220), (1935, 1032316), (2045, 976788), (2454, 813990), (2524, 791415), (2580, 774237), (3155, 633132), (3681, 542660), (3786, 527610), (3870, 516158), (4090, 488394), (4908, 406995), (5679, 351740), (6135, 325596), (6310, 316566), (7362, 271330), (7572, 263805), (7740, 258079), (8180, 244197), (9465, 211044), (11358, 175870), (12270, 162798), (12620, 158283), (14724, 135665), (17587, 113580), (18405, 108532), (18930, 105522), (22716, 87935), (24540, 81399), (27133, 73620), (28395, 70348), (35174, 56790), (36810, 54266), (37860, 52761)]