257203908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{1187}}^1$

素因数の和:1673

約数の個数: 72

約数和(自身を含む): 702269568

約数和(自身を除く): 445065660

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 463, 468, 926, 1187, 1389, 1852, 2374, 2778, 3561, 4167, 4748, 5556, 6019, 7122, 8334, 10683, 12038, 14244, 15431, 16668, 18057, 21366, 24076, 30862, 36114, 42732, 46293, 54171, 61724, 72228, 92586, 108342, 138879, 185172, 216684, 277758, 549581, 555516, 1099162, 1648743, 2198324, 3297486, 4946229, 6594972, 7144553, 9892458, 14289106, 19784916, 21433659, 28578212, 42867318, 64300977, 85734636, 128601954, 257203908]

約数ペア:

[(1, 257203908), (2, 128601954), (3, 85734636), (4, 64300977), (6, 42867318), (9, 28578212), (12, 21433659), (13, 19784916), (18, 14289106), (26, 9892458), (36, 7144553), (39, 6594972), (52, 4946229), (78, 3297486), (117, 2198324), (156, 1648743), (234, 1099162), (463, 555516), (468, 549581), (926, 277758), (1187, 216684), (1389, 185172), (1852, 138879), (2374, 108342), (2778, 92586), (3561, 72228), (4167, 61724), (4748, 54171), (5556, 46293), (6019, 42732), (7122, 36114), (8334, 30862), (10683, 24076), (12038, 21366), (14244, 18057), (15431, 16668)]