19758420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:630

約数の個数: 144

約数和(自身を含む): 69346368

約数和(自身を除く): 49587948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 587, 612, 660, 748, 765, 935, 990, 1020, 1122, 1174, 1530, 1683, 1761, 1870, 1980, 2244, 2348, 2805, 2935, 3060, 3366, 3522, 3740, 5283, 5610, 5870, 6457, 6732, 7044, 8415, 8805, 9979, 10566, 11220, 11740, 12914, 16830, 17610, 19371, 19958, 21132, 25828, 26415, 29937, 32285, 33660, 35220, 38742, 39916, 49895, 52830, 58113, 59874, 64570, 77484, 89811, 96855, 99790, 105660, 109769, 116226, 119748, 129140, 149685, 179622, 193710, 199580, 219538, 232452, 290565, 299370, 329307, 359244, 387420, 439076, 449055, 548845, 581130, 598740, 658614, 898110, 987921, 1097690, 1162260, 1317228, 1646535, 1796220, 1975842, 2195380, 3293070, 3951684, 4939605, 6586140, 9879210, 19758420]

約数ペア:

[(1, 19758420), (2, 9879210), (3, 6586140), (4, 4939605), (5, 3951684), (6, 3293070), (9, 2195380), (10, 1975842), (11, 1796220), (12, 1646535), (15, 1317228), (17, 1162260), (18, 1097690), (20, 987921), (22, 898110), (30, 658614), (33, 598740), (34, 581130), (36, 548845), (44, 449055), (45, 439076), (51, 387420), (55, 359244), (60, 329307), (66, 299370), (68, 290565), (85, 232452), (90, 219538), (99, 199580), (102, 193710), (110, 179622), (132, 149685), (153, 129140), (165, 119748), (170, 116226), (180, 109769), (187, 105660), (198, 99790), (204, 96855), (220, 89811), (255, 77484), (306, 64570), (330, 59874), (340, 58113), (374, 52830), (396, 49895), (495, 39916), (510, 38742), (561, 35220), (587, 33660), (612, 32285), (660, 29937), (748, 26415), (765, 25828), (935, 21132), (990, 19958), (1020, 19371), (1122, 17610), (1174, 16830), (1530, 12914), (1683, 11740), (1761, 11220), (1870, 10566), (1980, 9979), (2244, 8805), (2348, 8415), (2805, 7044), (2935, 6732), (3060, 6457), (3366, 5870), (3522, 5610), (3740, 5283)]