74920020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1499}}^1$

素因数の和:1542

約数の個数: 144

約数和(自身を含む): 258552000

約数和(自身を除く): 183631980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1499, 1666, 1785, 2380, 2499, 2940, 2998, 3332, 3570, 4165, 4497, 4998, 5996, 7140, 7495, 8330, 8994, 9996, 10493, 12495, 14990, 16660, 17988, 20986, 22485, 24990, 25483, 29980, 31479, 41972, 44970, 49980, 50966, 52465, 62958, 73451, 76449, 89940, 101932, 104930, 125916, 127415, 146902, 152898, 157395, 178381, 209860, 220353, 254830, 293804, 305796, 314790, 356762, 367255, 382245, 440706, 509660, 535143, 629580, 713524, 734510, 764490, 881412, 891905, 1070286, 1101765, 1248667, 1469020, 1528980, 1783810, 2140572, 2203530, 2497334, 2675715, 3567620, 3746001, 4407060, 4994668, 5351430, 6243335, 7492002, 10702860, 12486670, 14984004, 18730005, 24973340, 37460010, 74920020]

約数ペア:

[(1, 74920020), (2, 37460010), (3, 24973340), (4, 18730005), (5, 14984004), (6, 12486670), (7, 10702860), (10, 7492002), (12, 6243335), (14, 5351430), (15, 4994668), (17, 4407060), (20, 3746001), (21, 3567620), (28, 2675715), (30, 2497334), (34, 2203530), (35, 2140572), (42, 1783810), (49, 1528980), (51, 1469020), (60, 1248667), (68, 1101765), (70, 1070286), (84, 891905), (85, 881412), (98, 764490), (102, 734510), (105, 713524), (119, 629580), (140, 535143), (147, 509660), (170, 440706), (196, 382245), (204, 367255), (210, 356762), (238, 314790), (245, 305796), (255, 293804), (294, 254830), (340, 220353), (357, 209860), (420, 178381), (476, 157395), (490, 152898), (510, 146902), (588, 127415), (595, 125916), (714, 104930), (735, 101932), (833, 89940), (980, 76449), (1020, 73451), (1190, 62958), (1428, 52465), (1470, 50966), (1499, 49980), (1666, 44970), (1785, 41972), (2380, 31479), (2499, 29980), (2940, 25483), (2998, 24990), (3332, 22485), (3570, 20986), (4165, 17988), (4497, 16660), (4998, 14990), (5996, 12495), (7140, 10493), (7495, 9996), (8330, 8994)]