19802412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{439}}^1$

素因数の和:635

約数の個数: 72

約数和(自身を含む): 57657600

約数和(自身を除く): 37855188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 179, 252, 358, 439, 537, 716, 878, 1074, 1253, 1317, 1611, 1756, 2148, 2506, 2634, 3073, 3222, 3759, 3951, 5012, 5268, 6146, 6444, 7518, 7902, 9219, 11277, 12292, 15036, 15804, 18438, 22554, 27657, 36876, 45108, 55314, 78581, 110628, 157162, 235743, 314324, 471486, 550067, 707229, 942972, 1100134, 1414458, 1650201, 2200268, 2828916, 3300402, 4950603, 6600804, 9901206, 19802412]

約数ペア:

[(1, 19802412), (2, 9901206), (3, 6600804), (4, 4950603), (6, 3300402), (7, 2828916), (9, 2200268), (12, 1650201), (14, 1414458), (18, 1100134), (21, 942972), (28, 707229), (36, 550067), (42, 471486), (63, 314324), (84, 235743), (126, 157162), (179, 110628), (252, 78581), (358, 55314), (439, 45108), (537, 36876), (716, 27657), (878, 22554), (1074, 18438), (1253, 15804), (1317, 15036), (1611, 12292), (1756, 11277), (2148, 9219), (2506, 7902), (2634, 7518), (3073, 6444), (3222, 6146), (3759, 5268), (3951, 5012)]