20927340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 76894272

約数和(自身を除く): 55966932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 977, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1954, 2142, 2380, 2931, 3060, 3570, 3908, 4284, 4885, 5355, 5862, 6839, 7140, 8793, 9770, 10710, 11724, 13678, 14655, 16609, 17586, 19540, 20517, 21420, 27356, 29310, 33218, 34195, 35172, 41034, 43965, 49827, 58620, 61551, 66436, 68390, 82068, 83045, 87930, 99654, 102585, 116263, 123102, 136780, 149481, 166090, 175860, 199308, 205170, 232526, 246204, 249135, 298962, 307755, 332180, 348789, 410340, 465052, 498270, 581315, 597924, 615510, 697578, 747405, 996540, 1046367, 1162630, 1231020, 1395156, 1494810, 1743945, 2092734, 2325260, 2989620, 3487890, 4185468, 5231835, 6975780, 10463670, 20927340]

約数ペア:

[(1, 20927340), (2, 10463670), (3, 6975780), (4, 5231835), (5, 4185468), (6, 3487890), (7, 2989620), (9, 2325260), (10, 2092734), (12, 1743945), (14, 1494810), (15, 1395156), (17, 1231020), (18, 1162630), (20, 1046367), (21, 996540), (28, 747405), (30, 697578), (34, 615510), (35, 597924), (36, 581315), (42, 498270), (45, 465052), (51, 410340), (60, 348789), (63, 332180), (68, 307755), (70, 298962), (84, 249135), (85, 246204), (90, 232526), (102, 205170), (105, 199308), (119, 175860), (126, 166090), (140, 149481), (153, 136780), (170, 123102), (180, 116263), (204, 102585), (210, 99654), (238, 87930), (252, 83045), (255, 82068), (306, 68390), (315, 66436), (340, 61551), (357, 58620), (420, 49827), (476, 43965), (510, 41034), (595, 35172), (612, 34195), (630, 33218), (714, 29310), (765, 27356), (977, 21420), (1020, 20517), (1071, 19540), (1190, 17586), (1260, 16609), (1428, 14655), (1530, 13678), (1785, 11724), (1954, 10710), (2142, 9770), (2380, 8793), (2931, 7140), (3060, 6839), (3570, 5862), (3908, 5355), (4284, 4885)]