2045649700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{8353}}^1$

素因数の和:8477

約数の個数: 72

約数和(自身を含む): 4640814080

約数和(自身を除く): 2595164380

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 79, 100, 124, 155, 158, 310, 316, 395, 620, 775, 790, 1550, 1580, 1975, 2449, 3100, 3950, 4898, 7900, 8353, 9796, 12245, 16706, 24490, 33412, 41765, 48980, 61225, 83530, 122450, 167060, 208825, 244900, 258943, 417650, 517886, 659887, 835300, 1035772, 1294715, 1319774, 2589430, 2639548, 3299435, 5178860, 6473575, 6598870, 12947150, 13197740, 16497175, 20456497, 25894300, 32994350, 40912994, 65988700, 81825988, 102282485, 204564970, 409129940, 511412425, 1022824850, 2045649700]

約数ペア:

[(1, 2045649700), (2, 1022824850), (4, 511412425), (5, 409129940), (10, 204564970), (20, 102282485), (25, 81825988), (31, 65988700), (50, 40912994), (62, 32994350), (79, 25894300), (100, 20456497), (124, 16497175), (155, 13197740), (158, 12947150), (310, 6598870), (316, 6473575), (395, 5178860), (620, 3299435), (775, 2639548), (790, 2589430), (1550, 1319774), (1580, 1294715), (1975, 1035772), (2449, 835300), (3100, 659887), (3950, 517886), (4898, 417650), (7900, 258943), (8353, 244900), (9796, 208825), (12245, 167060), (16706, 122450), (24490, 83530), (33412, 61225), (41765, 48980)]