72255420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:632

約数の個数: 144

約数和(自身を含む): 236500992

約数和(自身を除く): 164245572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 230, 276, 279, 310, 345, 372, 414, 460, 465, 558, 563, 620, 690, 713, 828, 930, 1035, 1116, 1126, 1380, 1395, 1426, 1689, 1860, 2070, 2139, 2252, 2790, 2815, 2852, 3378, 3565, 4140, 4278, 5067, 5580, 5630, 6417, 6756, 7130, 8445, 8556, 10134, 10695, 11260, 12834, 12949, 14260, 16890, 17453, 20268, 21390, 25335, 25668, 25898, 32085, 33780, 34906, 38847, 42780, 50670, 51796, 52359, 64170, 64745, 69812, 77694, 87265, 101340, 104718, 116541, 128340, 129490, 155388, 157077, 174530, 194235, 209436, 233082, 258980, 261795, 314154, 349060, 388470, 401419, 466164, 523590, 582705, 628308, 776940, 785385, 802838, 1047180, 1165410, 1204257, 1570770, 1605676, 2007095, 2330820, 2408514, 3141540, 3612771, 4014190, 4817028, 6021285, 7225542, 8028380, 12042570, 14451084, 18063855, 24085140, 36127710, 72255420]

約数ペア:

[(1, 72255420), (2, 36127710), (3, 24085140), (4, 18063855), (5, 14451084), (6, 12042570), (9, 8028380), (10, 7225542), (12, 6021285), (15, 4817028), (18, 4014190), (20, 3612771), (23, 3141540), (30, 2408514), (31, 2330820), (36, 2007095), (45, 1605676), (46, 1570770), (60, 1204257), (62, 1165410), (69, 1047180), (90, 802838), (92, 785385), (93, 776940), (115, 628308), (124, 582705), (138, 523590), (155, 466164), (180, 401419), (186, 388470), (207, 349060), (230, 314154), (276, 261795), (279, 258980), (310, 233082), (345, 209436), (372, 194235), (414, 174530), (460, 157077), (465, 155388), (558, 129490), (563, 128340), (620, 116541), (690, 104718), (713, 101340), (828, 87265), (930, 77694), (1035, 69812), (1116, 64745), (1126, 64170), (1380, 52359), (1395, 51796), (1426, 50670), (1689, 42780), (1860, 38847), (2070, 34906), (2139, 33780), (2252, 32085), (2790, 25898), (2815, 25668), (2852, 25335), (3378, 21390), (3565, 20268), (4140, 17453), (4278, 16890), (5067, 14260), (5580, 12949), (5630, 12834), (6417, 11260), (6756, 10695), (7130, 10134), (8445, 8556)]