1871881340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{353}}^1\times {\mathrm{773}}^1$

素因数の和:1156

約数の個数: 96

約数和(自身を含む): 4603132800

約数和(自身を除く): 2731251460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 353, 490, 686, 706, 773, 980, 1372, 1412, 1546, 1715, 1765, 2471, 3092, 3430, 3530, 3865, 4942, 5411, 6860, 7060, 7730, 9884, 10822, 12355, 15460, 17297, 21644, 24710, 27055, 34594, 37877, 49420, 54110, 69188, 75754, 86485, 108220, 121079, 151508, 172970, 189385, 242158, 265139, 272869, 345940, 378770, 484316, 530278, 545738, 605395, 757540, 1060556, 1091476, 1210790, 1325695, 1364345, 1910083, 2421580, 2651390, 2728690, 3820166, 5302780, 5457380, 7640332, 9550415, 13370581, 19100830, 26741162, 38201660, 53482324, 66852905, 93594067, 133705810, 187188134, 267411620, 374376268, 467970335, 935940670, 1871881340]

約数ペア:

[(1, 1871881340), (2, 935940670), (4, 467970335), (5, 374376268), (7, 267411620), (10, 187188134), (14, 133705810), (20, 93594067), (28, 66852905), (35, 53482324), (49, 38201660), (70, 26741162), (98, 19100830), (140, 13370581), (196, 9550415), (245, 7640332), (343, 5457380), (353, 5302780), (490, 3820166), (686, 2728690), (706, 2651390), (773, 2421580), (980, 1910083), (1372, 1364345), (1412, 1325695), (1546, 1210790), (1715, 1091476), (1765, 1060556), (2471, 757540), (3092, 605395), (3430, 545738), (3530, 530278), (3865, 484316), (4942, 378770), (5411, 345940), (6860, 272869), (7060, 265139), (7730, 242158), (9884, 189385), (10822, 172970), (12355, 151508), (15460, 121079), (17297, 108220), (21644, 86485), (24710, 75754), (27055, 69188), (34594, 54110), (37877, 49420)]