19984770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:105

約数の個数: 192

約数和(自身を含む): 62899200

約数和(自身を除く): 42914430

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 29, 30, 31, 38, 39, 45, 57, 58, 62, 65, 78, 87, 90, 93, 95, 114, 117, 130, 145, 155, 171, 174, 186, 190, 195, 234, 247, 261, 279, 285, 290, 310, 342, 377, 390, 403, 435, 465, 494, 522, 551, 558, 570, 585, 589, 741, 754, 806, 855, 870, 899, 930, 1102, 1131, 1170, 1178, 1209, 1235, 1305, 1395, 1482, 1653, 1710, 1767, 1798, 1885, 2015, 2223, 2262, 2418, 2470, 2610, 2697, 2755, 2790, 2945, 3306, 3393, 3534, 3627, 3705, 3770, 4030, 4446, 4495, 4959, 5301, 5394, 5510, 5655, 5890, 6045, 6786, 7163, 7254, 7410, 7657, 8091, 8265, 8835, 8990, 9918, 10602, 11115, 11310, 11687, 12090, 13485, 14326, 15314, 16182, 16530, 16965, 17081, 17670, 18135, 21489, 22230, 22971, 23374, 24795, 26505, 26970, 33930, 34162, 35061, 35815, 36270, 38285, 40455, 42978, 45942, 49590, 51243, 53010, 58435, 64467, 68913, 70122, 71630, 76570, 80910, 85405, 102486, 105183, 107445, 114855, 116870, 128934, 137826, 153729, 170810, 175305, 210366, 214890, 222053, 229710, 256215, 307458, 322335, 344565, 350610, 444106, 512430, 525915, 644670, 666159, 689130, 768645, 1051830, 1110265, 1332318, 1537290, 1998477, 2220530, 3330795, 3996954, 6661590, 9992385, 19984770]

約数ペア:

[(1, 19984770), (2, 9992385), (3, 6661590), (5, 3996954), (6, 3330795), (9, 2220530), (10, 1998477), (13, 1537290), (15, 1332318), (18, 1110265), (19, 1051830), (26, 768645), (29, 689130), (30, 666159), (31, 644670), (38, 525915), (39, 512430), (45, 444106), (57, 350610), (58, 344565), (62, 322335), (65, 307458), (78, 256215), (87, 229710), (90, 222053), (93, 214890), (95, 210366), (114, 175305), (117, 170810), (130, 153729), (145, 137826), (155, 128934), (171, 116870), (174, 114855), (186, 107445), (190, 105183), (195, 102486), (234, 85405), (247, 80910), (261, 76570), (279, 71630), (285, 70122), (290, 68913), (310, 64467), (342, 58435), (377, 53010), (390, 51243), (403, 49590), (435, 45942), (465, 42978), (494, 40455), (522, 38285), (551, 36270), (558, 35815), (570, 35061), (585, 34162), (589, 33930), (741, 26970), (754, 26505), (806, 24795), (855, 23374), (870, 22971), (899, 22230), (930, 21489), (1102, 18135), (1131, 17670), (1170, 17081), (1178, 16965), (1209, 16530), (1235, 16182), (1305, 15314), (1395, 14326), (1482, 13485), (1653, 12090), (1710, 11687), (1767, 11310), (1798, 11115), (1885, 10602), (2015, 9918), (2223, 8990), (2262, 8835), (2418, 8265), (2470, 8091), (2610, 7657), (2697, 7410), (2755, 7254), (2790, 7163), (2945, 6786), (3306, 6045), (3393, 5890), (3534, 5655), (3627, 5510), (3705, 5394), (3770, 5301), (4030, 4959), (4446, 4495)]