28838950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:254

約数の個数: 72

約数和(自身を含む): 63612000

約数和(自身を除く): 34773050

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 79, 98, 149, 158, 175, 245, 298, 350, 395, 490, 553, 745, 790, 1043, 1106, 1225, 1490, 1975, 2086, 2450, 2765, 3725, 3871, 3950, 5215, 5530, 7301, 7450, 7742, 10430, 11771, 13825, 14602, 19355, 23542, 26075, 27650, 36505, 38710, 52150, 58855, 73010, 82397, 96775, 117710, 164794, 182525, 193550, 294275, 365050, 411985, 576779, 588550, 823970, 1153558, 2059925, 2883895, 4119850, 5767790, 14419475, 28838950]

約数ペア:

[(1, 28838950), (2, 14419475), (5, 5767790), (7, 4119850), (10, 2883895), (14, 2059925), (25, 1153558), (35, 823970), (49, 588550), (50, 576779), (70, 411985), (79, 365050), (98, 294275), (149, 193550), (158, 182525), (175, 164794), (245, 117710), (298, 96775), (350, 82397), (395, 73010), (490, 58855), (553, 52150), (745, 38710), (790, 36505), (1043, 27650), (1106, 26075), (1225, 23542), (1490, 19355), (1975, 14602), (2086, 13825), (2450, 11771), (2765, 10430), (3725, 7742), (3871, 7450), (3950, 7301), (5215, 5530)]