18634140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 144

約数和(自身を含む): 67511808

約数和(自身を除く): 48877668

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 643, 644, 690, 805, 828, 966, 1035, 1260, 1286, 1380, 1449, 1610, 1929, 1932, 2070, 2415, 2572, 2898, 3215, 3220, 3858, 4140, 4501, 4830, 5787, 5796, 6430, 7245, 7716, 9002, 9645, 9660, 11574, 12860, 13503, 14490, 14789, 18004, 19290, 22505, 23148, 27006, 28935, 28980, 29578, 38580, 40509, 44367, 45010, 54012, 57870, 59156, 67515, 73945, 81018, 88734, 90020, 103523, 115740, 133101, 135030, 147890, 162036, 177468, 202545, 207046, 221835, 266202, 270060, 295780, 310569, 405090, 414092, 443670, 517615, 532404, 621138, 665505, 810180, 887340, 931707, 1035230, 1242276, 1331010, 1552845, 1863414, 2070460, 2662020, 3105690, 3726828, 4658535, 6211380, 9317070, 18634140]

約数ペア:

[(1, 18634140), (2, 9317070), (3, 6211380), (4, 4658535), (5, 3726828), (6, 3105690), (7, 2662020), (9, 2070460), (10, 1863414), (12, 1552845), (14, 1331010), (15, 1242276), (18, 1035230), (20, 931707), (21, 887340), (23, 810180), (28, 665505), (30, 621138), (35, 532404), (36, 517615), (42, 443670), (45, 414092), (46, 405090), (60, 310569), (63, 295780), (69, 270060), (70, 266202), (84, 221835), (90, 207046), (92, 202545), (105, 177468), (115, 162036), (126, 147890), (138, 135030), (140, 133101), (161, 115740), (180, 103523), (207, 90020), (210, 88734), (230, 81018), (252, 73945), (276, 67515), (315, 59156), (322, 57870), (345, 54012), (414, 45010), (420, 44367), (460, 40509), (483, 38580), (630, 29578), (643, 28980), (644, 28935), (690, 27006), (805, 23148), (828, 22505), (966, 19290), (1035, 18004), (1260, 14789), (1286, 14490), (1380, 13503), (1449, 12860), (1610, 11574), (1929, 9660), (1932, 9645), (2070, 9002), (2415, 7716), (2572, 7245), (2898, 6430), (3215, 5796), (3220, 5787), (3858, 4830), (4140, 4501)]