881020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 2298240

約数和(自身を除く): 1417220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 31, 35, 49, 58, 62, 70, 98, 116, 124, 140, 145, 155, 196, 203, 217, 245, 290, 310, 406, 434, 490, 580, 620, 812, 868, 899, 980, 1015, 1085, 1421, 1519, 1798, 2030, 2170, 2842, 3038, 3596, 4060, 4340, 4495, 5684, 6076, 6293, 7105, 7595, 8990, 12586, 14210, 15190, 17980, 25172, 28420, 30380, 31465, 44051, 62930, 88102, 125860, 176204, 220255, 440510, 881020]

約数ペア:

[(1, 881020), (2, 440510), (4, 220255), (5, 176204), (7, 125860), (10, 88102), (14, 62930), (20, 44051), (28, 31465), (29, 30380), (31, 28420), (35, 25172), (49, 17980), (58, 15190), (62, 14210), (70, 12586), (98, 8990), (116, 7595), (124, 7105), (140, 6293), (145, 6076), (155, 5684), (196, 4495), (203, 4340), (217, 4060), (245, 3596), (290, 3038), (310, 2842), (406, 2170), (434, 2030), (490, 1798), (580, 1519), (620, 1421), (812, 1085), (868, 1015), (899, 980)]