17878490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 20690470

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 61, 70, 79, 106, 122, 158, 265, 305, 371, 395, 427, 530, 553, 610, 742, 790, 854, 1106, 1855, 2135, 2765, 3233, 3710, 4187, 4270, 4819, 5530, 6466, 8374, 9638, 16165, 20935, 22631, 24095, 29309, 32330, 33733, 41870, 45262, 48190, 58618, 67466, 113155, 146545, 168665, 226310, 255407, 293090, 337330, 510814, 1277035, 1787849, 2554070, 3575698, 8939245, 17878490]

約数ペア:

[(1, 17878490), (2, 8939245), (5, 3575698), (7, 2554070), (10, 1787849), (14, 1277035), (35, 510814), (53, 337330), (61, 293090), (70, 255407), (79, 226310), (106, 168665), (122, 146545), (158, 113155), (265, 67466), (305, 58618), (371, 48190), (395, 45262), (427, 41870), (530, 33733), (553, 32330), (610, 29309), (742, 24095), (790, 22631), (854, 20935), (1106, 16165), (1855, 9638), (2135, 8374), (2765, 6466), (3233, 5530), (3710, 4819), (4187, 4270)]