90390420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 287659008

約数和(自身を除く): 197268588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 97, 124, 155, 167, 180, 186, 194, 279, 291, 310, 334, 372, 388, 465, 485, 501, 558, 582, 620, 668, 835, 873, 930, 970, 1002, 1116, 1164, 1395, 1455, 1503, 1670, 1746, 1860, 1940, 2004, 2505, 2790, 2910, 3006, 3007, 3340, 3492, 4365, 5010, 5177, 5580, 5820, 6012, 6014, 7515, 8730, 9021, 10020, 10354, 12028, 15030, 15035, 15531, 16199, 17460, 18042, 20708, 25885, 27063, 30060, 30070, 31062, 32398, 36084, 45105, 46593, 48597, 51770, 54126, 60140, 62124, 64796, 77655, 80995, 90210, 93186, 97194, 103540, 108252, 135315, 145791, 155310, 161990, 180420, 186372, 194388, 232965, 242985, 270630, 291582, 310620, 323980, 465930, 485970, 502169, 541260, 583164, 728955, 931860, 971940, 1004338, 1457910, 1506507, 2008676, 2510845, 2915820, 3013014, 4519521, 5021690, 6026028, 7532535, 9039042, 10043380, 15065070, 18078084, 22597605, 30130140, 45195210, 90390420]

約数ペア:

[(1, 90390420), (2, 45195210), (3, 30130140), (4, 22597605), (5, 18078084), (6, 15065070), (9, 10043380), (10, 9039042), (12, 7532535), (15, 6026028), (18, 5021690), (20, 4519521), (30, 3013014), (31, 2915820), (36, 2510845), (45, 2008676), (60, 1506507), (62, 1457910), (90, 1004338), (93, 971940), (97, 931860), (124, 728955), (155, 583164), (167, 541260), (180, 502169), (186, 485970), (194, 465930), (279, 323980), (291, 310620), (310, 291582), (334, 270630), (372, 242985), (388, 232965), (465, 194388), (485, 186372), (501, 180420), (558, 161990), (582, 155310), (620, 145791), (668, 135315), (835, 108252), (873, 103540), (930, 97194), (970, 93186), (1002, 90210), (1116, 80995), (1164, 77655), (1395, 64796), (1455, 62124), (1503, 60140), (1670, 54126), (1746, 51770), (1860, 48597), (1940, 46593), (2004, 45105), (2505, 36084), (2790, 32398), (2910, 31062), (3006, 30070), (3007, 30060), (3340, 27063), (3492, 25885), (4365, 20708), (5010, 18042), (5177, 17460), (5580, 16199), (5820, 15531), (6012, 15035), (6014, 15030), (7515, 12028), (8730, 10354), (9021, 10020)]