123235980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 405409536

約数和(自身を除く): 282173556

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 167, 196, 210, 245, 251, 294, 334, 420, 490, 501, 502, 588, 668, 735, 753, 835, 980, 1002, 1004, 1169, 1255, 1470, 1506, 1670, 1757, 2004, 2338, 2505, 2510, 2940, 3012, 3340, 3507, 3514, 3765, 4676, 5010, 5020, 5271, 5845, 7014, 7028, 7530, 8183, 8785, 10020, 10542, 11690, 12299, 14028, 15060, 16366, 17535, 17570, 21084, 23380, 24549, 24598, 26355, 32732, 35070, 35140, 36897, 40915, 41917, 49098, 49196, 52710, 61495, 70140, 73794, 81830, 83834, 98196, 105420, 122745, 122990, 125751, 147588, 163660, 167668, 184485, 209585, 245490, 245980, 251502, 293419, 368970, 419170, 490980, 503004, 586838, 628755, 737940, 838340, 880257, 1173676, 1257510, 1467095, 1760514, 2053933, 2515020, 2934190, 3521028, 4107866, 4401285, 5868380, 6161799, 8215732, 8802570, 10269665, 12323598, 17605140, 20539330, 24647196, 30808995, 41078660, 61617990, 123235980]

約数ペア:

[(1, 123235980), (2, 61617990), (3, 41078660), (4, 30808995), (5, 24647196), (6, 20539330), (7, 17605140), (10, 12323598), (12, 10269665), (14, 8802570), (15, 8215732), (20, 6161799), (21, 5868380), (28, 4401285), (30, 4107866), (35, 3521028), (42, 2934190), (49, 2515020), (60, 2053933), (70, 1760514), (84, 1467095), (98, 1257510), (105, 1173676), (140, 880257), (147, 838340), (167, 737940), (196, 628755), (210, 586838), (245, 503004), (251, 490980), (294, 419170), (334, 368970), (420, 293419), (490, 251502), (501, 245980), (502, 245490), (588, 209585), (668, 184485), (735, 167668), (753, 163660), (835, 147588), (980, 125751), (1002, 122990), (1004, 122745), (1169, 105420), (1255, 98196), (1470, 83834), (1506, 81830), (1670, 73794), (1757, 70140), (2004, 61495), (2338, 52710), (2505, 49196), (2510, 49098), (2940, 41917), (3012, 40915), (3340, 36897), (3507, 35140), (3514, 35070), (3765, 32732), (4676, 26355), (5010, 24598), (5020, 24549), (5271, 23380), (5845, 21084), (7014, 17570), (7028, 17535), (7530, 16366), (8183, 15060), (8785, 14028), (10020, 12299), (10542, 11690)]