19901310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4639}}^1$

素因数の和:4673

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 36224130

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4639, 9278, 13917, 23195, 27834, 46390, 51029, 60307, 69585, 102058, 120614, 139170, 153087, 180921, 255145, 301535, 306174, 361842, 510290, 603070, 663377, 765435, 904605, 1326754, 1530870, 1809210, 1990131, 3316885, 3980262, 6633770, 9950655, 19901310]

約数ペア:

[(1, 19901310), (2, 9950655), (3, 6633770), (5, 3980262), (6, 3316885), (10, 1990131), (11, 1809210), (13, 1530870), (15, 1326754), (22, 904605), (26, 765435), (30, 663377), (33, 603070), (39, 510290), (55, 361842), (65, 306174), (66, 301535), (78, 255145), (110, 180921), (130, 153087), (143, 139170), (165, 120614), (195, 102058), (286, 69585), (330, 60307), (390, 51029), (429, 46390), (715, 27834), (858, 23195), (1430, 13917), (2145, 9278), (4290, 4639)]