18881940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 67995648

約数和(自身を除く): 49113708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 61, 66, 67, 70, 77, 84, 105, 110, 122, 132, 134, 140, 154, 165, 183, 201, 210, 220, 231, 244, 268, 305, 308, 330, 335, 366, 385, 402, 420, 427, 462, 469, 610, 660, 670, 671, 732, 737, 770, 804, 854, 915, 924, 938, 1005, 1155, 1220, 1281, 1340, 1342, 1407, 1474, 1540, 1708, 1830, 1876, 2010, 2013, 2135, 2211, 2310, 2345, 2562, 2684, 2814, 2948, 3355, 3660, 3685, 4020, 4026, 4087, 4270, 4422, 4620, 4690, 4697, 5124, 5159, 5628, 6405, 6710, 7035, 7370, 8052, 8174, 8540, 8844, 9380, 9394, 10065, 10318, 11055, 12261, 12810, 13420, 14070, 14091, 14740, 15477, 16348, 18788, 20130, 20435, 20636, 22110, 23485, 24522, 25620, 25795, 28140, 28182, 28609, 30954, 40260, 40870, 44220, 44957, 46970, 49044, 51590, 56364, 57218, 61305, 61908, 70455, 77385, 81740, 85827, 89914, 93940, 103180, 114436, 122610, 134871, 140910, 143045, 154770, 171654, 179828, 224785, 245220, 269742, 281820, 286090, 309540, 314699, 343308, 429135, 449570, 539484, 572180, 629398, 674355, 858270, 899140, 944097, 1258796, 1348710, 1573495, 1716540, 1888194, 2697420, 3146990, 3776388, 4720485, 6293980, 9440970, 18881940]

約数ペア:

[(1, 18881940), (2, 9440970), (3, 6293980), (4, 4720485), (5, 3776388), (6, 3146990), (7, 2697420), (10, 1888194), (11, 1716540), (12, 1573495), (14, 1348710), (15, 1258796), (20, 944097), (21, 899140), (22, 858270), (28, 674355), (30, 629398), (33, 572180), (35, 539484), (42, 449570), (44, 429135), (55, 343308), (60, 314699), (61, 309540), (66, 286090), (67, 281820), (70, 269742), (77, 245220), (84, 224785), (105, 179828), (110, 171654), (122, 154770), (132, 143045), (134, 140910), (140, 134871), (154, 122610), (165, 114436), (183, 103180), (201, 93940), (210, 89914), (220, 85827), (231, 81740), (244, 77385), (268, 70455), (305, 61908), (308, 61305), (330, 57218), (335, 56364), (366, 51590), (385, 49044), (402, 46970), (420, 44957), (427, 44220), (462, 40870), (469, 40260), (610, 30954), (660, 28609), (670, 28182), (671, 28140), (732, 25795), (737, 25620), (770, 24522), (804, 23485), (854, 22110), (915, 20636), (924, 20435), (938, 20130), (1005, 18788), (1155, 16348), (1220, 15477), (1281, 14740), (1340, 14091), (1342, 14070), (1407, 13420), (1474, 12810), (1540, 12261), (1708, 11055), (1830, 10318), (1876, 10065), (2010, 9394), (2013, 9380), (2135, 8844), (2211, 8540), (2310, 8174), (2345, 8052), (2562, 7370), (2684, 7035), (2814, 6710), (2948, 6405), (3355, 5628), (3660, 5159), (3685, 5124), (4020, 4697), (4026, 4690), (4087, 4620), (4270, 4422)]