20528550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^4\times {\mathrm{19}}^1$

素因数の和:65

約数の個数: 180

約数和(自身を含む): 67728180

約数和(自身を除く): 47199630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 30, 35, 38, 42, 45, 49, 50, 57, 63, 70, 75, 90, 95, 98, 105, 114, 126, 133, 147, 150, 171, 175, 190, 210, 225, 245, 266, 285, 294, 315, 342, 343, 350, 399, 441, 450, 475, 490, 525, 570, 630, 665, 686, 735, 798, 855, 882, 931, 950, 1029, 1050, 1197, 1225, 1330, 1425, 1470, 1575, 1710, 1715, 1862, 1995, 2058, 2205, 2394, 2401, 2450, 2793, 2850, 3087, 3150, 3325, 3430, 3675, 3990, 4275, 4410, 4655, 4802, 5145, 5586, 5985, 6174, 6517, 6650, 7203, 7350, 8379, 8550, 8575, 9310, 9975, 10290, 11025, 11970, 12005, 13034, 13965, 14406, 15435, 16758, 17150, 19551, 19950, 21609, 22050, 23275, 24010, 25725, 27930, 29925, 30870, 32585, 36015, 39102, 41895, 43218, 45619, 46550, 51450, 58653, 59850, 60025, 65170, 69825, 72030, 77175, 83790, 91238, 97755, 108045, 117306, 120050, 136857, 139650, 154350, 162925, 180075, 195510, 209475, 216090, 228095, 273714, 293265, 325850, 360150, 410571, 418950, 456190, 488775, 540225, 586530, 684285, 821142, 977550, 1080450, 1140475, 1368570, 1466325, 2052855, 2280950, 2932650, 3421425, 4105710, 6842850, 10264275, 20528550]

約数ペア:

[(1, 20528550), (2, 10264275), (3, 6842850), (5, 4105710), (6, 3421425), (7, 2932650), (9, 2280950), (10, 2052855), (14, 1466325), (15, 1368570), (18, 1140475), (19, 1080450), (21, 977550), (25, 821142), (30, 684285), (35, 586530), (38, 540225), (42, 488775), (45, 456190), (49, 418950), (50, 410571), (57, 360150), (63, 325850), (70, 293265), (75, 273714), (90, 228095), (95, 216090), (98, 209475), (105, 195510), (114, 180075), (126, 162925), (133, 154350), (147, 139650), (150, 136857), (171, 120050), (175, 117306), (190, 108045), (210, 97755), (225, 91238), (245, 83790), (266, 77175), (285, 72030), (294, 69825), (315, 65170), (342, 60025), (343, 59850), (350, 58653), (399, 51450), (441, 46550), (450, 45619), (475, 43218), (490, 41895), (525, 39102), (570, 36015), (630, 32585), (665, 30870), (686, 29925), (735, 27930), (798, 25725), (855, 24010), (882, 23275), (931, 22050), (950, 21609), (1029, 19950), (1050, 19551), (1197, 17150), (1225, 16758), (1330, 15435), (1425, 14406), (1470, 13965), (1575, 13034), (1710, 12005), (1715, 11970), (1862, 11025), (1995, 10290), (2058, 9975), (2205, 9310), (2394, 8575), (2401, 8550), (2450, 8379), (2793, 7350), (2850, 7203), (3087, 6650), (3150, 6517), (3325, 6174), (3430, 5985), (3675, 5586), (3990, 5145), (4275, 4802), (4410, 4655)]