20367620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 144

約数和(自身を含む): 57351168

約数和(自身を除く): 36983548

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 52, 62, 65, 70, 76, 91, 95, 124, 130, 133, 140, 155, 182, 190, 217, 247, 260, 266, 310, 361, 364, 380, 403, 434, 455, 494, 532, 589, 620, 665, 722, 806, 868, 910, 988, 1085, 1178, 1235, 1330, 1444, 1612, 1729, 1805, 1820, 2015, 2170, 2356, 2470, 2527, 2660, 2821, 2945, 3458, 3610, 4030, 4123, 4340, 4693, 4940, 5054, 5642, 5890, 6916, 7220, 7657, 8060, 8246, 8645, 9386, 10108, 11191, 11284, 11780, 12635, 14105, 15314, 16492, 17290, 18772, 20615, 22382, 23465, 25270, 28210, 30628, 32851, 34580, 38285, 41230, 44764, 46930, 50540, 53599, 55955, 56420, 65702, 76570, 78337, 82460, 93860, 107198, 111910, 131404, 145483, 153140, 156674, 164255, 214396, 223820, 267995, 290966, 313348, 328510, 391685, 535990, 581932, 657020, 727415, 783370, 1018381, 1071980, 1454830, 1566740, 2036762, 2909660, 4073524, 5091905, 10183810, 20367620]

約数ペア:

[(1, 20367620), (2, 10183810), (4, 5091905), (5, 4073524), (7, 2909660), (10, 2036762), (13, 1566740), (14, 1454830), (19, 1071980), (20, 1018381), (26, 783370), (28, 727415), (31, 657020), (35, 581932), (38, 535990), (52, 391685), (62, 328510), (65, 313348), (70, 290966), (76, 267995), (91, 223820), (95, 214396), (124, 164255), (130, 156674), (133, 153140), (140, 145483), (155, 131404), (182, 111910), (190, 107198), (217, 93860), (247, 82460), (260, 78337), (266, 76570), (310, 65702), (361, 56420), (364, 55955), (380, 53599), (403, 50540), (434, 46930), (455, 44764), (494, 41230), (532, 38285), (589, 34580), (620, 32851), (665, 30628), (722, 28210), (806, 25270), (868, 23465), (910, 22382), (988, 20615), (1085, 18772), (1178, 17290), (1235, 16492), (1330, 15314), (1444, 14105), (1612, 12635), (1729, 11780), (1805, 11284), (1820, 11191), (2015, 10108), (2170, 9386), (2356, 8645), (2470, 8246), (2527, 8060), (2660, 7657), (2821, 7220), (2945, 6916), (3458, 5890), (3610, 5642), (4030, 5054), (4123, 4940), (4340, 4693)]