15931980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1451}}^1$

素因数の和:1527

約数の個数: 72

約数和(自身を含む): 49153104

約数和(自身を除く): 33221124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1451, 1830, 2196, 2745, 2902, 3660, 4353, 5490, 5804, 7255, 8706, 10980, 13059, 14510, 17412, 21765, 26118, 29020, 43530, 52236, 65295, 87060, 88511, 130590, 177022, 261180, 265533, 354044, 442555, 531066, 796599, 885110, 1062132, 1327665, 1593198, 1770220, 2655330, 3186396, 3982995, 5310660, 7965990, 15931980]

約数ペア:

[(1, 15931980), (2, 7965990), (3, 5310660), (4, 3982995), (5, 3186396), (6, 2655330), (9, 1770220), (10, 1593198), (12, 1327665), (15, 1062132), (18, 885110), (20, 796599), (30, 531066), (36, 442555), (45, 354044), (60, 265533), (61, 261180), (90, 177022), (122, 130590), (180, 88511), (183, 87060), (244, 65295), (305, 52236), (366, 43530), (549, 29020), (610, 26118), (732, 21765), (915, 17412), (1098, 14510), (1220, 13059), (1451, 10980), (1830, 8706), (2196, 7255), (2745, 5804), (2902, 5490), (3660, 4353)]