40678820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 111541248

約数和(自身を除く): 70862428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 103, 124, 130, 140, 155, 182, 196, 206, 217, 245, 260, 310, 364, 403, 412, 434, 455, 490, 515, 620, 637, 721, 806, 868, 910, 980, 1030, 1085, 1274, 1339, 1442, 1519, 1612, 1820, 2015, 2060, 2170, 2548, 2678, 2821, 2884, 3038, 3185, 3193, 3605, 4030, 4340, 5047, 5356, 5642, 6076, 6370, 6386, 6695, 7210, 7595, 8060, 9373, 10094, 11284, 12740, 12772, 13390, 14105, 14420, 15190, 15965, 18746, 19747, 20188, 22351, 25235, 26780, 28210, 30380, 31930, 37492, 39494, 41509, 44702, 46865, 50470, 56420, 63860, 65611, 78988, 83018, 89404, 93730, 98735, 100940, 111755, 131222, 156457, 166036, 187460, 197470, 207545, 223510, 262444, 290563, 312914, 328055, 394940, 415090, 447020, 581126, 625828, 656110, 782285, 830180, 1162252, 1312220, 1452815, 1564570, 2033941, 2905630, 3129140, 4067882, 5811260, 8135764, 10169705, 20339410, 40678820]

約数ペア:

[(1, 40678820), (2, 20339410), (4, 10169705), (5, 8135764), (7, 5811260), (10, 4067882), (13, 3129140), (14, 2905630), (20, 2033941), (26, 1564570), (28, 1452815), (31, 1312220), (35, 1162252), (49, 830180), (52, 782285), (62, 656110), (65, 625828), (70, 581126), (91, 447020), (98, 415090), (103, 394940), (124, 328055), (130, 312914), (140, 290563), (155, 262444), (182, 223510), (196, 207545), (206, 197470), (217, 187460), (245, 166036), (260, 156457), (310, 131222), (364, 111755), (403, 100940), (412, 98735), (434, 93730), (455, 89404), (490, 83018), (515, 78988), (620, 65611), (637, 63860), (721, 56420), (806, 50470), (868, 46865), (910, 44702), (980, 41509), (1030, 39494), (1085, 37492), (1274, 31930), (1339, 30380), (1442, 28210), (1519, 26780), (1612, 25235), (1820, 22351), (2015, 20188), (2060, 19747), (2170, 18746), (2548, 15965), (2678, 15190), (2821, 14420), (2884, 14105), (3038, 13390), (3185, 12772), (3193, 12740), (3605, 11284), (4030, 10094), (4340, 9373), (5047, 8060), (5356, 7595), (5642, 7210), (6076, 6695), (6370, 6386)]