281949720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1213}}^1$

素因数の和:1389

約数の個数: 128

約数和(自身を含む): 917784000

約数和(自身を除く): 635834280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 149, 156, 195, 260, 298, 312, 390, 447, 520, 596, 745, 780, 894, 1192, 1213, 1490, 1560, 1788, 1937, 2235, 2426, 2980, 3576, 3639, 3874, 4470, 4852, 5811, 5960, 6065, 7278, 7748, 8940, 9685, 9704, 11622, 12130, 14556, 15496, 15769, 17880, 18195, 19370, 23244, 24260, 29055, 29112, 31538, 36390, 38740, 46488, 47307, 48520, 58110, 63076, 72780, 77480, 78845, 94614, 116220, 126152, 145560, 157690, 180737, 189228, 232440, 236535, 315380, 361474, 378456, 473070, 542211, 630760, 722948, 903685, 946140, 1084422, 1445896, 1807370, 1892280, 2168844, 2349581, 2711055, 3614740, 4337688, 4699162, 5422110, 7048743, 7229480, 9398324, 10844220, 11747905, 14097486, 18796648, 21688440, 23495810, 28194972, 35243715, 46991620, 56389944, 70487430, 93983240, 140974860, 281949720]

約数ペア:

[(1, 281949720), (2, 140974860), (3, 93983240), (4, 70487430), (5, 56389944), (6, 46991620), (8, 35243715), (10, 28194972), (12, 23495810), (13, 21688440), (15, 18796648), (20, 14097486), (24, 11747905), (26, 10844220), (30, 9398324), (39, 7229480), (40, 7048743), (52, 5422110), (60, 4699162), (65, 4337688), (78, 3614740), (104, 2711055), (120, 2349581), (130, 2168844), (149, 1892280), (156, 1807370), (195, 1445896), (260, 1084422), (298, 946140), (312, 903685), (390, 722948), (447, 630760), (520, 542211), (596, 473070), (745, 378456), (780, 361474), (894, 315380), (1192, 236535), (1213, 232440), (1490, 189228), (1560, 180737), (1788, 157690), (1937, 145560), (2235, 126152), (2426, 116220), (2980, 94614), (3576, 78845), (3639, 77480), (3874, 72780), (4470, 63076), (4852, 58110), (5811, 48520), (5960, 47307), (6065, 46488), (7278, 38740), (7748, 36390), (8940, 31538), (9685, 29112), (9704, 29055), (11622, 24260), (12130, 23244), (14556, 19370), (15496, 18195), (15769, 17880)]