31521420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:325

約数の個数: 192

約数和(自身を含む): 116121600

約数和(自身を除く): 84600180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 180, 186, 189, 210, 217, 252, 269, 270, 279, 310, 315, 372, 378, 420, 434, 465, 538, 540, 558, 620, 630, 651, 756, 807, 837, 868, 930, 945, 1076, 1085, 1116, 1260, 1302, 1345, 1395, 1614, 1674, 1860, 1883, 1890, 1953, 2170, 2421, 2604, 2690, 2790, 3228, 3255, 3348, 3766, 3780, 3906, 4035, 4185, 4340, 4842, 5380, 5580, 5649, 5859, 6510, 7263, 7532, 7812, 8070, 8339, 8370, 9415, 9684, 9765, 11298, 11718, 12105, 13020, 14526, 16140, 16678, 16740, 16947, 18830, 19530, 22596, 23436, 24210, 25017, 28245, 29052, 29295, 33356, 33894, 36315, 37660, 39060, 41695, 48420, 50034, 50841, 56490, 58373, 58590, 67788, 72630, 75051, 83390, 84735, 100068, 101682, 112980, 116746, 117180, 125085, 145260, 150102, 166780, 169470, 175119, 203364, 225153, 233492, 250170, 254205, 291865, 300204, 338940, 350238, 375255, 450306, 500340, 508410, 525357, 583730, 700476, 750510, 875595, 900612, 1016820, 1050714, 1125765, 1167460, 1501020, 1576071, 1751190, 2101428, 2251530, 2626785, 3152142, 3502380, 4503060, 5253570, 6304284, 7880355, 10507140, 15760710, 31521420]

約数ペア:

[(1, 31521420), (2, 15760710), (3, 10507140), (4, 7880355), (5, 6304284), (6, 5253570), (7, 4503060), (9, 3502380), (10, 3152142), (12, 2626785), (14, 2251530), (15, 2101428), (18, 1751190), (20, 1576071), (21, 1501020), (27, 1167460), (28, 1125765), (30, 1050714), (31, 1016820), (35, 900612), (36, 875595), (42, 750510), (45, 700476), (54, 583730), (60, 525357), (62, 508410), (63, 500340), (70, 450306), (84, 375255), (90, 350238), (93, 338940), (105, 300204), (108, 291865), (124, 254205), (126, 250170), (135, 233492), (140, 225153), (155, 203364), (180, 175119), (186, 169470), (189, 166780), (210, 150102), (217, 145260), (252, 125085), (269, 117180), (270, 116746), (279, 112980), (310, 101682), (315, 100068), (372, 84735), (378, 83390), (420, 75051), (434, 72630), (465, 67788), (538, 58590), (540, 58373), (558, 56490), (620, 50841), (630, 50034), (651, 48420), (756, 41695), (807, 39060), (837, 37660), (868, 36315), (930, 33894), (945, 33356), (1076, 29295), (1085, 29052), (1116, 28245), (1260, 25017), (1302, 24210), (1345, 23436), (1395, 22596), (1614, 19530), (1674, 18830), (1860, 16947), (1883, 16740), (1890, 16678), (1953, 16140), (2170, 14526), (2421, 13020), (2604, 12105), (2690, 11718), (2790, 11298), (3228, 9765), (3255, 9684), (3348, 9415), (3766, 8370), (3780, 8339), (3906, 8070), (4035, 7812), (4185, 7532), (4340, 7263), (4842, 6510), (5380, 5859), (5580, 5649)]