19851390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 59911488

約数和(自身を除く): 40060098

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 30, 38, 39, 45, 47, 57, 65, 78, 90, 94, 95, 114, 117, 130, 141, 171, 190, 195, 234, 235, 247, 282, 285, 342, 361, 390, 423, 470, 494, 570, 585, 611, 705, 722, 741, 846, 855, 893, 1083, 1170, 1222, 1235, 1410, 1482, 1710, 1786, 1805, 1833, 2115, 2166, 2223, 2470, 2679, 3055, 3249, 3610, 3666, 3705, 4230, 4446, 4465, 4693, 5358, 5415, 5499, 6110, 6498, 7410, 8037, 8930, 9165, 9386, 10830, 10998, 11115, 11609, 13395, 14079, 16074, 16245, 16967, 18330, 22230, 23218, 23465, 26790, 27495, 28158, 32490, 33934, 34827, 40185, 42237, 46930, 50901, 54990, 58045, 69654, 70395, 80370, 84474, 84835, 101802, 104481, 116090, 140790, 152703, 169670, 174135, 208962, 211185, 220571, 254505, 305406, 348270, 422370, 441142, 509010, 522405, 661713, 763515, 1044810, 1102855, 1323426, 1527030, 1985139, 2205710, 3308565, 3970278, 6617130, 9925695, 19851390]

約数ペア:

[(1, 19851390), (2, 9925695), (3, 6617130), (5, 3970278), (6, 3308565), (9, 2205710), (10, 1985139), (13, 1527030), (15, 1323426), (18, 1102855), (19, 1044810), (26, 763515), (30, 661713), (38, 522405), (39, 509010), (45, 441142), (47, 422370), (57, 348270), (65, 305406), (78, 254505), (90, 220571), (94, 211185), (95, 208962), (114, 174135), (117, 169670), (130, 152703), (141, 140790), (171, 116090), (190, 104481), (195, 101802), (234, 84835), (235, 84474), (247, 80370), (282, 70395), (285, 69654), (342, 58045), (361, 54990), (390, 50901), (423, 46930), (470, 42237), (494, 40185), (570, 34827), (585, 33934), (611, 32490), (705, 28158), (722, 27495), (741, 26790), (846, 23465), (855, 23218), (893, 22230), (1083, 18330), (1170, 16967), (1222, 16245), (1235, 16074), (1410, 14079), (1482, 13395), (1710, 11609), (1786, 11115), (1805, 10998), (1833, 10830), (2115, 9386), (2166, 9165), (2223, 8930), (2470, 8037), (2679, 7410), (3055, 6498), (3249, 6110), (3610, 5499), (3666, 5415), (3705, 5358), (4230, 4693), (4446, 4465)]