18859980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5153}}^1$

素因数の和:5226

約数の個数: 48

約数和(自身を含む): 53684064

約数和(自身を除く): 34824084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5153, 10306, 15459, 20612, 25765, 30918, 51530, 61836, 77295, 103060, 154590, 309180, 314333, 628666, 942999, 1257332, 1571665, 1885998, 3143330, 3771996, 4714995, 6286660, 9429990, 18859980]

約数ペア:

[(1, 18859980), (2, 9429990), (3, 6286660), (4, 4714995), (5, 3771996), (6, 3143330), (10, 1885998), (12, 1571665), (15, 1257332), (20, 942999), (30, 628666), (60, 314333), (61, 309180), (122, 154590), (183, 103060), (244, 77295), (305, 61836), (366, 51530), (610, 30918), (732, 25765), (915, 20612), (1220, 15459), (1830, 10306), (3660, 5153)]