2439390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 6285312

約数和(自身を除く): 3845922

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 43, 61, 62, 86, 93, 122, 129, 155, 183, 186, 215, 258, 305, 310, 366, 430, 465, 610, 645, 915, 930, 1290, 1333, 1830, 1891, 2623, 2666, 3782, 3999, 5246, 5673, 6665, 7869, 7998, 9455, 11346, 13115, 13330, 15738, 18910, 19995, 26230, 28365, 39345, 39990, 56730, 78690, 81313, 162626, 243939, 406565, 487878, 813130, 1219695, 2439390]

約数ペア:

[(1, 2439390), (2, 1219695), (3, 813130), (5, 487878), (6, 406565), (10, 243939), (15, 162626), (30, 81313), (31, 78690), (43, 56730), (61, 39990), (62, 39345), (86, 28365), (93, 26230), (122, 19995), (129, 18910), (155, 15738), (183, 13330), (186, 13115), (215, 11346), (258, 9455), (305, 7998), (310, 7869), (366, 6665), (430, 5673), (465, 5246), (610, 3999), (645, 3782), (915, 2666), (930, 2623), (1290, 1891), (1333, 1830)]