20185673560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1\times {\mathrm{1451}}^1$

素因数の和:2369

約数の個数: 128

約数和(自身を含む): 50582568960

約数和(自身を除く): 30396895400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 863, 1240, 1451, 1612, 1726, 2015, 2902, 3224, 3452, 4030, 4315, 5804, 6904, 7255, 8060, 8630, 11219, 11608, 14510, 16120, 17260, 18863, 22438, 26753, 29020, 34520, 37726, 44876, 44981, 53506, 56095, 58040, 75452, 89752, 89962, 94315, 107012, 112190, 133765, 150904, 179924, 188630, 214024, 224380, 224905, 267530, 347789, 359848, 377260, 448760, 449810, 535060, 584753, 695578, 754520, 899620, 1070120, 1169506, 1252213, 1391156, 1738945, 1799240, 2339012, 2504426, 2782312, 2923765, 3477890, 4678024, 5008852, 5847530, 6261065, 6955780, 10017704, 11695060, 12522130, 13911560, 16278769, 23390120, 25044260, 32557538, 38818603, 50088520, 65115076, 77637206, 81393845, 130230152, 155274412, 162787690, 194093015, 310548824, 325575380, 388186030, 504641839, 651150760, 776372060, 1009283678, 1552744120, 2018567356, 2523209195, 4037134712, 5046418390, 10092836780, 20185673560]

約数ペア:

[(1, 20185673560), (2, 10092836780), (4, 5046418390), (5, 4037134712), (8, 2523209195), (10, 2018567356), (13, 1552744120), (20, 1009283678), (26, 776372060), (31, 651150760), (40, 504641839), (52, 388186030), (62, 325575380), (65, 310548824), (104, 194093015), (124, 162787690), (130, 155274412), (155, 130230152), (248, 81393845), (260, 77637206), (310, 65115076), (403, 50088520), (520, 38818603), (620, 32557538), (806, 25044260), (863, 23390120), (1240, 16278769), (1451, 13911560), (1612, 12522130), (1726, 11695060), (2015, 10017704), (2902, 6955780), (3224, 6261065), (3452, 5847530), (4030, 5008852), (4315, 4678024), (5804, 3477890), (6904, 2923765), (7255, 2782312), (8060, 2504426), (8630, 2339012), (11219, 1799240), (11608, 1738945), (14510, 1391156), (16120, 1252213), (17260, 1169506), (18863, 1070120), (22438, 899620), (26753, 754520), (29020, 695578), (34520, 584753), (37726, 535060), (44876, 449810), (44981, 448760), (53506, 377260), (56095, 359848), (58040, 347789), (75452, 267530), (89752, 224905), (89962, 224380), (94315, 214024), (107012, 188630), (112190, 179924), (133765, 150904)]