31811940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:363

約数の個数: 120

約数和(自身を含む): 101538360

約数和(自身を除く): 69726420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 73, 81, 90, 108, 135, 146, 162, 180, 219, 269, 270, 292, 324, 365, 405, 438, 538, 540, 657, 730, 807, 810, 876, 1076, 1095, 1314, 1345, 1460, 1614, 1620, 1971, 2190, 2421, 2628, 2690, 3228, 3285, 3942, 4035, 4380, 4842, 5380, 5913, 6570, 7263, 7884, 8070, 9684, 9855, 11826, 12105, 13140, 14526, 16140, 19637, 19710, 21789, 23652, 24210, 29052, 29565, 36315, 39274, 39420, 43578, 48420, 58911, 59130, 72630, 78548, 87156, 98185, 108945, 117822, 118260, 145260, 176733, 196370, 217890, 235644, 294555, 353466, 392740, 435780, 530199, 589110, 706932, 883665, 1060398, 1178220, 1590597, 1767330, 2120796, 2650995, 3181194, 3534660, 5301990, 6362388, 7952985, 10603980, 15905970, 31811940]

約数ペア:

[(1, 31811940), (2, 15905970), (3, 10603980), (4, 7952985), (5, 6362388), (6, 5301990), (9, 3534660), (10, 3181194), (12, 2650995), (15, 2120796), (18, 1767330), (20, 1590597), (27, 1178220), (30, 1060398), (36, 883665), (45, 706932), (54, 589110), (60, 530199), (73, 435780), (81, 392740), (90, 353466), (108, 294555), (135, 235644), (146, 217890), (162, 196370), (180, 176733), (219, 145260), (269, 118260), (270, 117822), (292, 108945), (324, 98185), (365, 87156), (405, 78548), (438, 72630), (538, 59130), (540, 58911), (657, 48420), (730, 43578), (807, 39420), (810, 39274), (876, 36315), (1076, 29565), (1095, 29052), (1314, 24210), (1345, 23652), (1460, 21789), (1614, 19710), (1620, 19637), (1971, 16140), (2190, 14526), (2421, 13140), (2628, 12105), (2690, 11826), (3228, 9855), (3285, 9684), (3942, 8070), (4035, 7884), (4380, 7263), (4842, 6570), (5380, 5913)]