19801572

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{653}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 55814976

約数和(自身を除く): 36013404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 653, 722, 798, 1083, 1306, 1444, 1596, 1959, 2166, 2527, 2612, 3918, 4332, 4571, 5054, 7581, 7836, 9142, 10108, 12407, 13713, 15162, 18284, 24814, 27426, 30324, 37221, 49628, 54852, 74442, 86849, 148884, 173698, 235733, 260547, 347396, 471466, 521094, 707199, 942932, 1042188, 1414398, 1650131, 2828796, 3300262, 4950393, 6600524, 9900786, 19801572]

約数ペア:

[(1, 19801572), (2, 9900786), (3, 6600524), (4, 4950393), (6, 3300262), (7, 2828796), (12, 1650131), (14, 1414398), (19, 1042188), (21, 942932), (28, 707199), (38, 521094), (42, 471466), (57, 347396), (76, 260547), (84, 235733), (114, 173698), (133, 148884), (228, 86849), (266, 74442), (361, 54852), (399, 49628), (532, 37221), (653, 30324), (722, 27426), (798, 24814), (1083, 18284), (1306, 15162), (1444, 13713), (1596, 12407), (1959, 10108), (2166, 9142), (2527, 7836), (2612, 7581), (3918, 5054), (4332, 4571)]