31807860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 107251200

約数和(自身を除く): 75443340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 349, 372, 420, 434, 465, 490, 588, 620, 651, 698, 735, 868, 930, 980, 1047, 1085, 1302, 1396, 1470, 1519, 1745, 1860, 2094, 2170, 2443, 2604, 2940, 3038, 3255, 3490, 4188, 4340, 4557, 4886, 5235, 6076, 6510, 6980, 7329, 7595, 9114, 9772, 10470, 10819, 12215, 13020, 14658, 15190, 17101, 18228, 20940, 21638, 22785, 24430, 29316, 30380, 32457, 34202, 36645, 43276, 45570, 48860, 51303, 54095, 64914, 68404, 73290, 75733, 85505, 91140, 102606, 108190, 129828, 146580, 151466, 162285, 171010, 205212, 216380, 227199, 256515, 302932, 324570, 342020, 378665, 454398, 513030, 530131, 649140, 757330, 908796, 1026060, 1060262, 1135995, 1514660, 1590393, 2120524, 2271990, 2650655, 3180786, 4543980, 5301310, 6361572, 7951965, 10602620, 15903930, 31807860]

約数ペア:

[(1, 31807860), (2, 15903930), (3, 10602620), (4, 7951965), (5, 6361572), (6, 5301310), (7, 4543980), (10, 3180786), (12, 2650655), (14, 2271990), (15, 2120524), (20, 1590393), (21, 1514660), (28, 1135995), (30, 1060262), (31, 1026060), (35, 908796), (42, 757330), (49, 649140), (60, 530131), (62, 513030), (70, 454398), (84, 378665), (93, 342020), (98, 324570), (105, 302932), (124, 256515), (140, 227199), (147, 216380), (155, 205212), (186, 171010), (196, 162285), (210, 151466), (217, 146580), (245, 129828), (294, 108190), (310, 102606), (349, 91140), (372, 85505), (420, 75733), (434, 73290), (465, 68404), (490, 64914), (588, 54095), (620, 51303), (651, 48860), (698, 45570), (735, 43276), (868, 36645), (930, 34202), (980, 32457), (1047, 30380), (1085, 29316), (1302, 24430), (1396, 22785), (1470, 21638), (1519, 20940), (1745, 18228), (1860, 17101), (2094, 15190), (2170, 14658), (2443, 13020), (2604, 12215), (2940, 10819), (3038, 10470), (3255, 9772), (3490, 9114), (4188, 7595), (4340, 7329), (4557, 6980), (4886, 6510), (5235, 6076)]