9921990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 27406080

約数和(自身を除く): 17484090

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 103, 114, 130, 169, 190, 195, 206, 247, 285, 309, 338, 390, 494, 507, 515, 570, 618, 741, 845, 1014, 1030, 1235, 1339, 1482, 1545, 1690, 1957, 2470, 2535, 2678, 3090, 3211, 3705, 3914, 4017, 5070, 5871, 6422, 6695, 7410, 8034, 9633, 9785, 11742, 13390, 16055, 17407, 19266, 19570, 20085, 25441, 29355, 32110, 34814, 40170, 48165, 50882, 52221, 58710, 76323, 87035, 96330, 104442, 127205, 152646, 174070, 254410, 261105, 330733, 381615, 522210, 661466, 763230, 992199, 1653665, 1984398, 3307330, 4960995, 9921990]

約数ペア:

[(1, 9921990), (2, 4960995), (3, 3307330), (5, 1984398), (6, 1653665), (10, 992199), (13, 763230), (15, 661466), (19, 522210), (26, 381615), (30, 330733), (38, 261105), (39, 254410), (57, 174070), (65, 152646), (78, 127205), (95, 104442), (103, 96330), (114, 87035), (130, 76323), (169, 58710), (190, 52221), (195, 50882), (206, 48165), (247, 40170), (285, 34814), (309, 32110), (338, 29355), (390, 25441), (494, 20085), (507, 19570), (515, 19266), (570, 17407), (618, 16055), (741, 13390), (845, 11742), (1014, 9785), (1030, 9633), (1235, 8034), (1339, 7410), (1482, 6695), (1545, 6422), (1690, 5871), (1957, 5070), (2470, 4017), (2535, 3914), (2678, 3705), (3090, 3211)]