18892920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 60264000

約数和(自身を除く): 41371080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 61, 87, 89, 116, 120, 122, 145, 174, 178, 183, 232, 244, 267, 290, 305, 348, 356, 366, 435, 445, 488, 534, 580, 610, 696, 712, 732, 870, 890, 915, 1068, 1160, 1220, 1335, 1464, 1740, 1769, 1780, 1830, 2136, 2440, 2581, 2670, 3480, 3538, 3560, 3660, 5162, 5307, 5340, 5429, 7076, 7320, 7743, 8845, 10324, 10614, 10680, 10858, 12905, 14152, 15486, 16287, 17690, 20648, 21228, 21716, 25810, 26535, 27145, 30972, 32574, 35380, 38715, 42456, 43432, 51620, 53070, 54290, 61944, 65148, 70760, 77430, 81435, 103240, 106140, 108580, 130296, 154860, 157441, 162870, 212280, 217160, 309720, 314882, 325740, 472323, 629764, 651480, 787205, 944646, 1259528, 1574410, 1889292, 2361615, 3148820, 3778584, 4723230, 6297640, 9446460, 18892920]

約数ペア:

[(1, 18892920), (2, 9446460), (3, 6297640), (4, 4723230), (5, 3778584), (6, 3148820), (8, 2361615), (10, 1889292), (12, 1574410), (15, 1259528), (20, 944646), (24, 787205), (29, 651480), (30, 629764), (40, 472323), (58, 325740), (60, 314882), (61, 309720), (87, 217160), (89, 212280), (116, 162870), (120, 157441), (122, 154860), (145, 130296), (174, 108580), (178, 106140), (183, 103240), (232, 81435), (244, 77430), (267, 70760), (290, 65148), (305, 61944), (348, 54290), (356, 53070), (366, 51620), (435, 43432), (445, 42456), (488, 38715), (534, 35380), (580, 32574), (610, 30972), (696, 27145), (712, 26535), (732, 25810), (870, 21716), (890, 21228), (915, 20648), (1068, 17690), (1160, 16287), (1220, 15486), (1335, 14152), (1464, 12905), (1740, 10858), (1769, 10680), (1780, 10614), (1830, 10324), (2136, 8845), (2440, 7743), (2581, 7320), (2670, 7076), (3480, 5429), (3538, 5340), (3560, 5307), (3660, 5162)]