721426420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 192

約数和(自身を含む): 1878589440

約数和(自身を除く): 1157163020

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 31, 44, 52, 55, 62, 65, 79, 103, 110, 124, 130, 143, 155, 158, 206, 220, 260, 286, 310, 316, 341, 395, 403, 412, 515, 572, 620, 682, 715, 790, 806, 869, 1027, 1030, 1133, 1339, 1364, 1430, 1580, 1612, 1705, 1738, 2015, 2054, 2060, 2266, 2449, 2678, 2860, 3193, 3410, 3476, 4030, 4108, 4345, 4433, 4532, 4898, 5135, 5356, 5665, 6386, 6695, 6820, 8060, 8137, 8690, 8866, 9796, 10270, 11297, 11330, 12245, 12772, 13390, 14729, 15965, 16274, 17380, 17732, 20540, 22165, 22594, 22660, 24490, 26780, 26939, 29458, 31837, 31930, 32548, 35123, 40685, 41509, 44330, 45188, 48980, 53878, 56485, 58916, 63674, 63860, 70246, 73645, 81370, 83018, 88660, 89507, 105781, 107756, 112970, 127348, 134695, 140492, 147290, 159185, 162740, 166036, 175615, 179014, 207545, 211562, 225940, 252247, 269390, 294580, 318370, 350207, 351230, 358028, 415090, 423124, 447535, 456599, 504494, 528905, 538780, 636740, 700414, 702460, 830180, 895070, 913198, 1008988, 1057810, 1163591, 1261235, 1400828, 1751035, 1790140, 1826396, 2115620, 2282995, 2327182, 2522470, 2774717, 3279211, 3502070, 4565990, 4654364, 5044940, 5549434, 5817955, 6558422, 7004140, 9131980, 11098868, 11635910, 13116844, 13873585, 16396055, 23271820, 27747170, 32792110, 36071321, 55494340, 65584220, 72142642, 144285284, 180356605, 360713210, 721426420]

約数ペア:

[(1, 721426420), (2, 360713210), (4, 180356605), (5, 144285284), (10, 72142642), (11, 65584220), (13, 55494340), (20, 36071321), (22, 32792110), (26, 27747170), (31, 23271820), (44, 16396055), (52, 13873585), (55, 13116844), (62, 11635910), (65, 11098868), (79, 9131980), (103, 7004140), (110, 6558422), (124, 5817955), (130, 5549434), (143, 5044940), (155, 4654364), (158, 4565990), (206, 3502070), (220, 3279211), (260, 2774717), (286, 2522470), (310, 2327182), (316, 2282995), (341, 2115620), (395, 1826396), (403, 1790140), (412, 1751035), (515, 1400828), (572, 1261235), (620, 1163591), (682, 1057810), (715, 1008988), (790, 913198), (806, 895070), (869, 830180), (1027, 702460), (1030, 700414), (1133, 636740), (1339, 538780), (1364, 528905), (1430, 504494), (1580, 456599), (1612, 447535), (1705, 423124), (1738, 415090), (2015, 358028), (2054, 351230), (2060, 350207), (2266, 318370), (2449, 294580), (2678, 269390), (2860, 252247), (3193, 225940), (3410, 211562), (3476, 207545), (4030, 179014), (4108, 175615), (4345, 166036), (4433, 162740), (4532, 159185), (4898, 147290), (5135, 140492), (5356, 134695), (5665, 127348), (6386, 112970), (6695, 107756), (6820, 105781), (8060, 89507), (8137, 88660), (8690, 83018), (8866, 81370), (9796, 73645), (10270, 70246), (11297, 63860), (11330, 63674), (12245, 58916), (12772, 56485), (13390, 53878), (14729, 48980), (15965, 45188), (16274, 44330), (17380, 41509), (17732, 40685), (20540, 35123), (22165, 32548), (22594, 31930), (22660, 31837), (24490, 29458), (26780, 26939)]