20181657470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{16183}}^1$

素因数の和:16437

約数の個数: 64

約数和(自身を含む): 40082200704

約数和(自身を除く): 19900543234

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 181, 265, 362, 530, 689, 905, 1378, 1810, 2353, 3445, 4706, 6890, 9593, 11765, 16183, 19186, 23530, 32366, 47965, 80915, 95930, 124709, 161830, 210379, 249418, 420758, 623545, 857699, 1051895, 1247090, 1715398, 2103790, 2929123, 4288495, 5858246, 8576990, 11150087, 14645615, 22300174, 29291230, 38078599, 55750435, 76157198, 111500870, 155243519, 190392995, 310487038, 380785990, 776217595, 1552435190, 2018165747, 4036331494, 10090828735, 20181657470]

約数ペア:

[(1, 20181657470), (2, 10090828735), (5, 4036331494), (10, 2018165747), (13, 1552435190), (26, 776217595), (53, 380785990), (65, 310487038), (106, 190392995), (130, 155243519), (181, 111500870), (265, 76157198), (362, 55750435), (530, 38078599), (689, 29291230), (905, 22300174), (1378, 14645615), (1810, 11150087), (2353, 8576990), (3445, 5858246), (4706, 4288495), (6890, 2929123), (9593, 2103790), (11765, 1715398), (16183, 1247090), (19186, 1051895), (23530, 857699), (32366, 623545), (47965, 420758), (80915, 249418), (95930, 210379), (124709, 161830)]