20228210380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1319}}^1\times {\mathrm{15649}}^1$

素因数の和:16991

約数の個数: 72

約数和(自身を含む): 49455252000

約数和(自身を除く): 29227041620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1319, 2638, 5276, 6595, 9233, 13190, 15649, 18466, 26380, 31298, 36932, 46165, 62596, 64631, 78245, 92330, 109543, 129262, 156490, 184660, 219086, 258524, 312980, 323155, 438172, 547715, 646310, 766801, 1095430, 1292620, 1533602, 2190860, 3067204, 3834005, 7668010, 15336020, 20641031, 41282062, 82564124, 103205155, 144487217, 206410310, 288974434, 412820620, 577948868, 722436085, 1011410519, 1444872170, 2022821038, 2889744340, 4045642076, 5057052595, 10114105190, 20228210380]

約数ペア:

[(1, 20228210380), (2, 10114105190), (4, 5057052595), (5, 4045642076), (7, 2889744340), (10, 2022821038), (14, 1444872170), (20, 1011410519), (28, 722436085), (35, 577948868), (49, 412820620), (70, 288974434), (98, 206410310), (140, 144487217), (196, 103205155), (245, 82564124), (490, 41282062), (980, 20641031), (1319, 15336020), (2638, 7668010), (5276, 3834005), (6595, 3067204), (9233, 2190860), (13190, 1533602), (15649, 1292620), (18466, 1095430), (26380, 766801), (31298, 646310), (36932, 547715), (46165, 438172), (62596, 323155), (64631, 312980), (78245, 258524), (92330, 219086), (109543, 184660), (129262, 156490)]