21749983780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{1889}}^1$

素因数の和:2322

約数の個数: 144

約数和(自身を含む): 55019865600

約数和(自身を除く): 33269881820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 379, 434, 490, 620, 758, 868, 980, 1085, 1516, 1519, 1889, 1895, 2170, 2653, 3038, 3778, 3790, 4340, 5306, 6076, 7556, 7580, 7595, 9445, 10612, 11749, 13223, 13265, 15190, 18571, 18890, 23498, 26446, 26530, 30380, 37142, 37780, 46996, 52892, 53060, 58559, 58745, 66115, 74284, 82243, 92561, 92855, 117118, 117490, 132230, 164486, 185122, 185710, 234236, 234980, 264460, 292795, 328972, 370244, 371420, 409913, 411215, 462805, 575701, 585590, 715931, 819826, 822430, 925610, 1151402, 1171180, 1431862, 1639652, 1644860, 1851220, 2049565, 2302804, 2863724, 2869391, 2878505, 3579655, 4099130, 5011517, 5738782, 5757010, 7159310, 8198260, 10023034, 11477564, 11514020, 14318620, 14346955, 20046068, 22193861, 25057585, 28693910, 35080619, 44387722, 50115170, 57387820, 70161238, 88775444, 100230340, 110969305, 140322476, 155357027, 175403095, 221938610, 310714054, 350806190, 443877220, 621428108, 701612380, 776785135, 1087499189, 1553570270, 2174998378, 3107140540, 4349996756, 5437495945, 10874991890, 21749983780]

約数ペア:

[(1, 21749983780), (2, 10874991890), (4, 5437495945), (5, 4349996756), (7, 3107140540), (10, 2174998378), (14, 1553570270), (20, 1087499189), (28, 776785135), (31, 701612380), (35, 621428108), (49, 443877220), (62, 350806190), (70, 310714054), (98, 221938610), (124, 175403095), (140, 155357027), (155, 140322476), (196, 110969305), (217, 100230340), (245, 88775444), (310, 70161238), (379, 57387820), (434, 50115170), (490, 44387722), (620, 35080619), (758, 28693910), (868, 25057585), (980, 22193861), (1085, 20046068), (1516, 14346955), (1519, 14318620), (1889, 11514020), (1895, 11477564), (2170, 10023034), (2653, 8198260), (3038, 7159310), (3778, 5757010), (3790, 5738782), (4340, 5011517), (5306, 4099130), (6076, 3579655), (7556, 2878505), (7580, 2869391), (7595, 2863724), (9445, 2302804), (10612, 2049565), (11749, 1851220), (13223, 1644860), (13265, 1639652), (15190, 1431862), (18571, 1171180), (18890, 1151402), (23498, 925610), (26446, 822430), (26530, 819826), (30380, 715931), (37142, 585590), (37780, 575701), (46996, 462805), (52892, 411215), (53060, 409913), (58559, 371420), (58745, 370244), (66115, 328972), (74284, 292795), (82243, 264460), (92561, 234980), (92855, 234236), (117118, 185710), (117490, 185122), (132230, 164486)]