20158810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25460390

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 659, 665, 805, 874, 1318, 1330, 1610, 2185, 3059, 3295, 4370, 4613, 6118, 6590, 9226, 12521, 15157, 15295, 23065, 25042, 30314, 30590, 46130, 62605, 75785, 87647, 106099, 125210, 151570, 175294, 212198, 287983, 438235, 530495, 575966, 876470, 1060990, 1439915, 2015881, 2879830, 4031762, 10079405, 20158810]

約数ペア:

[(1, 20158810), (2, 10079405), (5, 4031762), (7, 2879830), (10, 2015881), (14, 1439915), (19, 1060990), (23, 876470), (35, 575966), (38, 530495), (46, 438235), (70, 287983), (95, 212198), (115, 175294), (133, 151570), (161, 125210), (190, 106099), (230, 87647), (266, 75785), (322, 62605), (437, 46130), (659, 30590), (665, 30314), (805, 25042), (874, 23065), (1318, 15295), (1330, 15157), (1610, 12521), (2185, 9226), (3059, 6590), (3295, 6118), (4370, 4613)]