20515673890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:488

約数の個数: 128

約数和(自身を含む): 40706426880

約数和(自身を除く): 20190752990

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 107, 151, 163, 190, 205, 214, 302, 326, 410, 535, 755, 779, 815, 1070, 1510, 1558, 1630, 2033, 2869, 3097, 3895, 4066, 4387, 5738, 6191, 6194, 6683, 7790, 8774, 10165, 12382, 13366, 14345, 15485, 16157, 17441, 20330, 21935, 24613, 28690, 30955, 30970, 32314, 33415, 34882, 43870, 49226, 61910, 66830, 80785, 83353, 87205, 117629, 123065, 126977, 161570, 166706, 174410, 235258, 246130, 253954, 306983, 331379, 416765, 467647, 588145, 613966, 634885, 662437, 662758, 715081, 833530, 935294, 1009133, 1176290, 1269770, 1324874, 1430162, 1534915, 1656895, 2018266, 2338235, 2633591, 3069830, 3312185, 3313790, 3575405, 4676470, 5045665, 5267182, 6624370, 7150810, 10091330, 12586303, 13167955, 13586539, 19173527, 25172606, 26335910, 27173078, 38347054, 50038229, 62931515, 67932695, 95867635, 100076458, 107977231, 125863030, 135865390, 191735270, 215954462, 250191145, 500382290, 539886155, 1079772310, 2051567389, 4103134778, 10257836945, 20515673890]

約数ペア:

[(1, 20515673890), (2, 10257836945), (5, 4103134778), (10, 2051567389), (19, 1079772310), (38, 539886155), (41, 500382290), (82, 250191145), (95, 215954462), (107, 191735270), (151, 135865390), (163, 125863030), (190, 107977231), (205, 100076458), (214, 95867635), (302, 67932695), (326, 62931515), (410, 50038229), (535, 38347054), (755, 27173078), (779, 26335910), (815, 25172606), (1070, 19173527), (1510, 13586539), (1558, 13167955), (1630, 12586303), (2033, 10091330), (2869, 7150810), (3097, 6624370), (3895, 5267182), (4066, 5045665), (4387, 4676470), (5738, 3575405), (6191, 3313790), (6194, 3312185), (6683, 3069830), (7790, 2633591), (8774, 2338235), (10165, 2018266), (12382, 1656895), (13366, 1534915), (14345, 1430162), (15485, 1324874), (16157, 1269770), (17441, 1176290), (20330, 1009133), (21935, 935294), (24613, 833530), (28690, 715081), (30955, 662758), (30970, 662437), (32314, 634885), (33415, 613966), (34882, 588145), (43870, 467647), (49226, 416765), (61910, 331379), (66830, 306983), (80785, 253954), (83353, 246130), (87205, 235258), (117629, 174410), (123065, 166706), (126977, 161570)]