30721620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 90316800

約数和(自身を除く): 59595180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 83, 93, 124, 155, 166, 186, 199, 249, 310, 332, 372, 398, 415, 465, 498, 597, 620, 796, 830, 930, 995, 996, 1194, 1245, 1660, 1860, 1990, 2388, 2490, 2573, 2985, 3980, 4980, 5146, 5970, 6169, 7719, 10292, 11940, 12338, 12865, 15438, 16517, 18507, 24676, 25730, 30845, 30876, 33034, 37014, 38595, 49551, 51460, 61690, 66068, 74028, 77190, 82585, 92535, 99102, 123380, 154380, 165170, 185070, 198204, 247755, 330340, 370140, 495510, 512027, 991020, 1024054, 1536081, 2048108, 2560135, 3072162, 5120270, 6144324, 7680405, 10240540, 15360810, 30721620]

約数ペア:

[(1, 30721620), (2, 15360810), (3, 10240540), (4, 7680405), (5, 6144324), (6, 5120270), (10, 3072162), (12, 2560135), (15, 2048108), (20, 1536081), (30, 1024054), (31, 991020), (60, 512027), (62, 495510), (83, 370140), (93, 330340), (124, 247755), (155, 198204), (166, 185070), (186, 165170), (199, 154380), (249, 123380), (310, 99102), (332, 92535), (372, 82585), (398, 77190), (415, 74028), (465, 66068), (498, 61690), (597, 51460), (620, 49551), (796, 38595), (830, 37014), (930, 33034), (995, 30876), (996, 30845), (1194, 25730), (1245, 24676), (1660, 18507), (1860, 16517), (1990, 15438), (2388, 12865), (2490, 12338), (2573, 11940), (2985, 10292), (3980, 7719), (4980, 6169), (5146, 5970)]