19702240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6481}}^1$

素因数の和:6515

約数の個数: 48

約数和(自身を含む): 49003920

約数和(自身を除く): 29301680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6481, 12962, 25924, 32405, 51848, 64810, 103696, 123139, 129620, 207392, 246278, 259240, 492556, 518480, 615695, 985112, 1036960, 1231390, 1970224, 2462780, 3940448, 4925560, 9851120, 19702240]

約数ペア:

[(1, 19702240), (2, 9851120), (4, 4925560), (5, 3940448), (8, 2462780), (10, 1970224), (16, 1231390), (19, 1036960), (20, 985112), (32, 615695), (38, 518480), (40, 492556), (76, 259240), (80, 246278), (95, 207392), (152, 129620), (160, 123139), (190, 103696), (304, 64810), (380, 51848), (608, 32405), (760, 25924), (1520, 12962), (3040, 6481)]