219850020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2074

約数の個数: 144

約数和(自身を含む): 733824000

約数和(自身を除く): 513973980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 47, 52, 60, 65, 78, 90, 94, 117, 130, 141, 156, 180, 188, 195, 234, 235, 260, 282, 390, 423, 468, 470, 564, 585, 611, 705, 780, 846, 940, 1170, 1222, 1410, 1692, 1833, 1999, 2115, 2340, 2444, 2820, 3055, 3666, 3998, 4230, 5499, 5997, 6110, 7332, 7996, 8460, 9165, 9995, 10998, 11994, 12220, 17991, 18330, 19990, 21996, 23988, 25987, 27495, 29985, 35982, 36660, 39980, 51974, 54990, 59970, 71964, 77961, 89955, 93953, 103948, 109980, 119940, 129935, 155922, 179910, 187906, 233883, 259870, 281859, 311844, 359820, 375812, 389805, 467766, 469765, 519740, 563718, 779610, 845577, 935532, 939530, 1127436, 1169415, 1221389, 1409295, 1559220, 1691154, 1879060, 2338830, 2442778, 2818590, 3382308, 3664167, 4227885, 4677660, 4885556, 5637180, 6106945, 7328334, 8455770, 10992501, 12213890, 14656668, 16911540, 18320835, 21985002, 24427780, 36641670, 43970004, 54962505, 73283340, 109925010, 219850020]

約数ペア:

[(1, 219850020), (2, 109925010), (3, 73283340), (4, 54962505), (5, 43970004), (6, 36641670), (9, 24427780), (10, 21985002), (12, 18320835), (13, 16911540), (15, 14656668), (18, 12213890), (20, 10992501), (26, 8455770), (30, 7328334), (36, 6106945), (39, 5637180), (45, 4885556), (47, 4677660), (52, 4227885), (60, 3664167), (65, 3382308), (78, 2818590), (90, 2442778), (94, 2338830), (117, 1879060), (130, 1691154), (141, 1559220), (156, 1409295), (180, 1221389), (188, 1169415), (195, 1127436), (234, 939530), (235, 935532), (260, 845577), (282, 779610), (390, 563718), (423, 519740), (468, 469765), (470, 467766), (564, 389805), (585, 375812), (611, 359820), (705, 311844), (780, 281859), (846, 259870), (940, 233883), (1170, 187906), (1222, 179910), (1410, 155922), (1692, 129935), (1833, 119940), (1999, 109980), (2115, 103948), (2340, 93953), (2444, 89955), (2820, 77961), (3055, 71964), (3666, 59970), (3998, 54990), (4230, 51974), (5499, 39980), (5997, 36660), (6110, 35982), (7332, 29985), (7996, 27495), (8460, 25987), (9165, 23988), (9995, 21996), (10998, 19990), (11994, 18330), (12220, 17991)]