80491980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{70607}}^1$

素因数の和:70638

約数の個数: 48

約数和(自身を含む): 237242880

約数和(自身を除く): 156750900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 70607, 141214, 211821, 282428, 353035, 423642, 706070, 847284, 1059105, 1341533, 1412140, 2118210, 2683066, 4024599, 4236420, 5366132, 6707665, 8049198, 13415330, 16098396, 20122995, 26830660, 40245990, 80491980]

約数ペア:

[(1, 80491980), (2, 40245990), (3, 26830660), (4, 20122995), (5, 16098396), (6, 13415330), (10, 8049198), (12, 6707665), (15, 5366132), (19, 4236420), (20, 4024599), (30, 2683066), (38, 2118210), (57, 1412140), (60, 1341533), (76, 1059105), (95, 847284), (114, 706070), (190, 423642), (228, 353035), (285, 282428), (380, 211821), (570, 141214), (1140, 70607)]