20919150

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:283

約数の個数: 144

約数和(自身を含む): 66736800

約数和(自身を除く): 45817650

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 29, 30, 35, 42, 45, 50, 58, 63, 70, 75, 87, 90, 105, 126, 145, 150, 174, 175, 203, 210, 225, 229, 261, 290, 315, 350, 406, 435, 450, 458, 522, 525, 609, 630, 687, 725, 870, 1015, 1050, 1145, 1218, 1305, 1374, 1450, 1575, 1603, 1827, 2030, 2061, 2175, 2290, 2610, 3045, 3150, 3206, 3435, 3654, 4122, 4350, 4809, 5075, 5725, 6090, 6525, 6641, 6870, 8015, 9135, 9618, 10150, 10305, 11450, 13050, 13282, 14427, 15225, 16030, 17175, 18270, 19923, 20610, 24045, 28854, 30450, 33205, 34350, 39846, 40075, 45675, 46487, 48090, 51525, 59769, 66410, 72135, 80150, 91350, 92974, 99615, 103050, 119538, 120225, 139461, 144270, 166025, 199230, 232435, 240450, 278922, 298845, 332050, 360675, 418383, 464870, 498075, 597690, 697305, 721350, 836766, 996150, 1162175, 1394610, 1494225, 2091915, 2324350, 2988450, 3486525, 4183830, 6973050, 10459575, 20919150]

約数ペア:

[(1, 20919150), (2, 10459575), (3, 6973050), (5, 4183830), (6, 3486525), (7, 2988450), (9, 2324350), (10, 2091915), (14, 1494225), (15, 1394610), (18, 1162175), (21, 996150), (25, 836766), (29, 721350), (30, 697305), (35, 597690), (42, 498075), (45, 464870), (50, 418383), (58, 360675), (63, 332050), (70, 298845), (75, 278922), (87, 240450), (90, 232435), (105, 199230), (126, 166025), (145, 144270), (150, 139461), (174, 120225), (175, 119538), (203, 103050), (210, 99615), (225, 92974), (229, 91350), (261, 80150), (290, 72135), (315, 66410), (350, 59769), (406, 51525), (435, 48090), (450, 46487), (458, 45675), (522, 40075), (525, 39846), (609, 34350), (630, 33205), (687, 30450), (725, 28854), (870, 24045), (1015, 20610), (1050, 19923), (1145, 18270), (1218, 17175), (1305, 16030), (1374, 15225), (1450, 14427), (1575, 13282), (1603, 13050), (1827, 11450), (2030, 10305), (2061, 10150), (2175, 9618), (2290, 9135), (2610, 8015), (3045, 6870), (3150, 6641), (3206, 6525), (3435, 6090), (3654, 5725), (4122, 5075), (4350, 4809)]