256609850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 575963136

約数和(自身を除く): 319353286

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 127, 161, 175, 230, 251, 254, 322, 350, 502, 575, 635, 805, 889, 1150, 1255, 1270, 1610, 1757, 1778, 2510, 2921, 3175, 3514, 4025, 4445, 5773, 5842, 6275, 6350, 8050, 8785, 8890, 11546, 12550, 14605, 17570, 20447, 22225, 28865, 29210, 31877, 40411, 40894, 43925, 44450, 57730, 63754, 73025, 80822, 87850, 102235, 144325, 146050, 159385, 202055, 204470, 223139, 288650, 318770, 404110, 446278, 511175, 733171, 796925, 1010275, 1022350, 1115695, 1466342, 1593850, 2020550, 2231390, 3665855, 5132197, 5578475, 7331710, 10264394, 11156950, 18329275, 25660985, 36658550, 51321970, 128304925, 256609850]

約数ペア:

[(1, 256609850), (2, 128304925), (5, 51321970), (7, 36658550), (10, 25660985), (14, 18329275), (23, 11156950), (25, 10264394), (35, 7331710), (46, 5578475), (50, 5132197), (70, 3665855), (115, 2231390), (127, 2020550), (161, 1593850), (175, 1466342), (230, 1115695), (251, 1022350), (254, 1010275), (322, 796925), (350, 733171), (502, 511175), (575, 446278), (635, 404110), (805, 318770), (889, 288650), (1150, 223139), (1255, 204470), (1270, 202055), (1610, 159385), (1757, 146050), (1778, 144325), (2510, 102235), (2921, 87850), (3175, 80822), (3514, 73025), (4025, 63754), (4445, 57730), (5773, 44450), (5842, 43925), (6275, 40894), (6350, 40411), (8050, 31877), (8785, 29210), (8890, 28865), (11546, 22225), (12550, 20447), (14605, 17570)]