20187329540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{145799}}^1$

素因数の和:145881

約数の個数: 96

約数和(自身を含む): 51732172800

約数和(自身を除く): 31544843260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 43, 46, 70, 86, 92, 115, 140, 161, 172, 215, 230, 301, 322, 430, 460, 602, 644, 805, 860, 989, 1204, 1505, 1610, 1978, 3010, 3220, 3956, 4945, 6020, 6923, 9890, 13846, 19780, 27692, 34615, 69230, 138460, 145799, 291598, 583196, 728995, 1020593, 1457990, 2041186, 2915980, 3353377, 4082372, 5102965, 6269357, 6706754, 10205930, 12538714, 13413508, 16766885, 20411860, 23473639, 25077428, 31346785, 33533770, 43885499, 46947278, 62693570, 67067540, 87770998, 93894556, 117368195, 125387140, 144195211, 175541996, 219427495, 234736390, 288390422, 438854990, 469472780, 576780844, 720976055, 877709980, 1009366477, 1441952110, 2018732954, 2883904220, 4037465908, 5046832385, 10093664770, 20187329540]

約数ペア:

[(1, 20187329540), (2, 10093664770), (4, 5046832385), (5, 4037465908), (7, 2883904220), (10, 2018732954), (14, 1441952110), (20, 1009366477), (23, 877709980), (28, 720976055), (35, 576780844), (43, 469472780), (46, 438854990), (70, 288390422), (86, 234736390), (92, 219427495), (115, 175541996), (140, 144195211), (161, 125387140), (172, 117368195), (215, 93894556), (230, 87770998), (301, 67067540), (322, 62693570), (430, 46947278), (460, 43885499), (602, 33533770), (644, 31346785), (805, 25077428), (860, 23473639), (989, 20411860), (1204, 16766885), (1505, 13413508), (1610, 12538714), (1978, 10205930), (3010, 6706754), (3220, 6269357), (3956, 5102965), (4945, 4082372), (6020, 3353377), (6923, 2915980), (9890, 2041186), (13846, 1457990), (19780, 1020593), (27692, 728995), (34615, 583196), (69230, 291598), (138460, 145799)]