20854350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{383}}^1$

素因数の和:423

約数の個数: 108

約数和(自身を含む): 61746048

約数和(自身を除く): 40891698

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 121, 150, 165, 198, 225, 242, 275, 330, 363, 383, 450, 495, 550, 605, 726, 766, 825, 990, 1089, 1149, 1210, 1650, 1815, 1915, 2178, 2298, 2475, 3025, 3447, 3630, 3830, 4213, 4950, 5445, 5745, 6050, 6894, 8426, 9075, 9575, 10890, 11490, 12639, 17235, 18150, 19150, 21065, 25278, 27225, 28725, 34470, 37917, 42130, 46343, 54450, 57450, 63195, 75834, 86175, 92686, 105325, 126390, 139029, 172350, 189585, 210650, 231715, 278058, 315975, 379170, 417087, 463430, 631950, 695145, 834174, 947925, 1158575, 1390290, 1895850, 2085435, 2317150, 3475725, 4170870, 6951450, 10427175, 20854350]

約数ペア:

[(1, 20854350), (2, 10427175), (3, 6951450), (5, 4170870), (6, 3475725), (9, 2317150), (10, 2085435), (11, 1895850), (15, 1390290), (18, 1158575), (22, 947925), (25, 834174), (30, 695145), (33, 631950), (45, 463430), (50, 417087), (55, 379170), (66, 315975), (75, 278058), (90, 231715), (99, 210650), (110, 189585), (121, 172350), (150, 139029), (165, 126390), (198, 105325), (225, 92686), (242, 86175), (275, 75834), (330, 63195), (363, 57450), (383, 54450), (450, 46343), (495, 42130), (550, 37917), (605, 34470), (726, 28725), (766, 27225), (825, 25278), (990, 21065), (1089, 19150), (1149, 18150), (1210, 17235), (1650, 12639), (1815, 11490), (1915, 10890), (2178, 9575), (2298, 9075), (2475, 8426), (3025, 6894), (3447, 6050), (3630, 5745), (3830, 5445), (4213, 4950)]