212179996

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:839

約数の個数: 72

約数和(自身を含む): 455970816

約数和(自身を除く): 243790820

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 49, 62, 94, 98, 124, 188, 196, 217, 329, 434, 658, 743, 868, 1316, 1457, 1486, 1519, 2303, 2914, 2972, 3038, 4606, 5201, 5828, 6076, 9212, 10199, 10402, 20398, 20804, 23033, 34921, 36407, 40796, 46066, 69842, 71393, 72814, 92132, 139684, 142786, 145628, 161231, 244447, 285572, 322462, 488894, 644924, 977788, 1082551, 1128617, 1711129, 2165102, 2257234, 3422258, 4330204, 4514468, 6844516, 7577857, 15155714, 30311428, 53044999, 106089998, 212179996]

約数ペア:

[(1, 212179996), (2, 106089998), (4, 53044999), (7, 30311428), (14, 15155714), (28, 7577857), (31, 6844516), (47, 4514468), (49, 4330204), (62, 3422258), (94, 2257234), (98, 2165102), (124, 1711129), (188, 1128617), (196, 1082551), (217, 977788), (329, 644924), (434, 488894), (658, 322462), (743, 285572), (868, 244447), (1316, 161231), (1457, 145628), (1486, 142786), (1519, 139684), (2303, 92132), (2914, 72814), (2972, 71393), (3038, 69842), (4606, 46066), (5201, 40796), (5828, 36407), (6076, 34921), (9212, 23033), (10199, 20804), (10402, 20398)]