420866964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3967}}^1$

素因数の和:4405

約数の個数: 72

約数和(自身を含む): 1219033088

約数和(自身を除く): 798166124

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 421, 842, 1263, 1684, 2526, 2947, 3789, 3967, 5052, 5894, 7578, 7934, 8841, 11788, 11901, 15156, 15868, 17682, 23802, 26523, 27769, 35364, 35703, 47604, 53046, 55538, 71406, 83307, 106092, 111076, 142812, 166614, 249921, 333228, 499842, 999684, 1670107, 3340214, 5010321, 6680428, 10020642, 11690749, 15030963, 20041284, 23381498, 30061926, 35072247, 46762996, 60123852, 70144494, 105216741, 140288988, 210433482, 420866964]

約数ペア:

[(1, 420866964), (2, 210433482), (3, 140288988), (4, 105216741), (6, 70144494), (7, 60123852), (9, 46762996), (12, 35072247), (14, 30061926), (18, 23381498), (21, 20041284), (28, 15030963), (36, 11690749), (42, 10020642), (63, 6680428), (84, 5010321), (126, 3340214), (252, 1670107), (421, 999684), (842, 499842), (1263, 333228), (1684, 249921), (2526, 166614), (2947, 142812), (3789, 111076), (3967, 106092), (5052, 83307), (5894, 71406), (7578, 55538), (7934, 53046), (8841, 47604), (11788, 35703), (11901, 35364), (15156, 27769), (15868, 26523), (17682, 23802)]