221388100

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 492968448

約数和(自身を除く): 271580348

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 173, 191, 268, 335, 346, 382, 670, 692, 764, 865, 955, 1340, 1675, 1730, 1910, 3350, 3460, 3820, 4325, 4775, 6700, 8650, 9550, 11591, 12797, 17300, 19100, 23182, 25594, 33043, 46364, 51188, 57955, 63985, 66086, 115910, 127970, 132172, 165215, 231820, 255940, 289775, 319925, 330430, 579550, 639850, 660860, 826075, 1159100, 1279700, 1652150, 2213881, 3304300, 4427762, 8855524, 11069405, 22138810, 44277620, 55347025, 110694050, 221388100]

約数ペア:

[(1, 221388100), (2, 110694050), (4, 55347025), (5, 44277620), (10, 22138810), (20, 11069405), (25, 8855524), (50, 4427762), (67, 3304300), (100, 2213881), (134, 1652150), (173, 1279700), (191, 1159100), (268, 826075), (335, 660860), (346, 639850), (382, 579550), (670, 330430), (692, 319925), (764, 289775), (865, 255940), (955, 231820), (1340, 165215), (1675, 132172), (1730, 127970), (1910, 115910), (3350, 66086), (3460, 63985), (3820, 57955), (4325, 51188), (4775, 46364), (6700, 33043), (8650, 25594), (9550, 23182), (11591, 19100), (12797, 17300)]