19693850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 40684896

約数和(自身を除く): 20991046

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 61, 110, 122, 275, 305, 550, 587, 610, 671, 1174, 1342, 1525, 2935, 3050, 3355, 5870, 6457, 6710, 12914, 14675, 16775, 29350, 32285, 33550, 35807, 64570, 71614, 161425, 179035, 322850, 358070, 393877, 787754, 895175, 1790350, 1969385, 3938770, 9846925, 19693850]

約数ペア:

[(1, 19693850), (2, 9846925), (5, 3938770), (10, 1969385), (11, 1790350), (22, 895175), (25, 787754), (50, 393877), (55, 358070), (61, 322850), (110, 179035), (122, 161425), (275, 71614), (305, 64570), (550, 35807), (587, 33550), (610, 32285), (671, 29350), (1174, 16775), (1342, 14675), (1525, 12914), (2935, 6710), (3050, 6457), (3355, 5870)]