19896610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 40953600

約数和(自身を除く): 21056990

約数列:

[1, 2, 5, 10, 19, 23, 29, 38, 46, 58, 95, 115, 145, 157, 190, 230, 290, 314, 437, 551, 667, 785, 874, 1102, 1334, 1570, 2185, 2755, 2983, 3335, 3611, 4370, 4553, 5510, 5966, 6670, 7222, 9106, 12673, 14915, 18055, 22765, 25346, 29830, 36110, 45530, 63365, 68609, 86507, 104719, 126730, 137218, 173014, 209438, 343045, 432535, 523595, 686090, 865070, 1047190, 1989661, 3979322, 9948305, 19896610]

約数ペア:

[(1, 19896610), (2, 9948305), (5, 3979322), (10, 1989661), (19, 1047190), (23, 865070), (29, 686090), (38, 523595), (46, 432535), (58, 343045), (95, 209438), (115, 173014), (145, 137218), (157, 126730), (190, 104719), (230, 86507), (290, 68609), (314, 63365), (437, 45530), (551, 36110), (667, 29830), (785, 25346), (874, 22765), (1102, 18055), (1334, 14915), (1570, 12673), (2185, 9106), (2755, 7222), (2983, 6670), (3335, 5966), (3611, 5510), (4370, 4553)]