19713210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 55738368

約数和(自身を除く): 36025158

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 41, 47, 55, 62, 66, 82, 93, 94, 110, 123, 141, 155, 165, 186, 205, 235, 246, 282, 310, 330, 341, 410, 451, 465, 470, 517, 615, 682, 705, 902, 930, 1023, 1034, 1230, 1271, 1353, 1410, 1457, 1551, 1705, 1927, 2046, 2255, 2542, 2585, 2706, 2914, 3102, 3410, 3813, 3854, 4371, 4510, 5115, 5170, 5781, 6355, 6765, 7285, 7626, 7755, 8742, 9635, 10230, 11562, 12710, 13530, 13981, 14570, 15510, 16027, 19065, 19270, 21197, 21855, 27962, 28905, 32054, 38130, 41943, 42394, 43710, 48081, 57810, 59737, 63591, 69905, 80135, 83886, 96162, 105985, 119474, 127182, 139810, 160270, 179211, 209715, 211970, 240405, 298685, 317955, 358422, 419430, 480810, 597370, 635910, 657107, 896055, 1314214, 1792110, 1971321, 3285535, 3942642, 6571070, 9856605, 19713210]

約数ペア:

[(1, 19713210), (2, 9856605), (3, 6571070), (5, 3942642), (6, 3285535), (10, 1971321), (11, 1792110), (15, 1314214), (22, 896055), (30, 657107), (31, 635910), (33, 597370), (41, 480810), (47, 419430), (55, 358422), (62, 317955), (66, 298685), (82, 240405), (93, 211970), (94, 209715), (110, 179211), (123, 160270), (141, 139810), (155, 127182), (165, 119474), (186, 105985), (205, 96162), (235, 83886), (246, 80135), (282, 69905), (310, 63591), (330, 59737), (341, 57810), (410, 48081), (451, 43710), (465, 42394), (470, 41943), (517, 38130), (615, 32054), (682, 28905), (705, 27962), (902, 21855), (930, 21197), (1023, 19270), (1034, 19065), (1230, 16027), (1271, 15510), (1353, 14570), (1410, 13981), (1457, 13530), (1551, 12710), (1705, 11562), (1927, 10230), (2046, 9635), (2255, 8742), (2542, 7755), (2585, 7626), (2706, 7285), (2914, 6765), (3102, 6355), (3410, 5781), (3813, 5170), (3854, 5115), (4371, 4510)]