78876180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:471

約数の個数: 120

約数和(自身を含む): 249729480

約数和(自身を除く): 170853300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 181, 269, 270, 324, 362, 405, 538, 540, 543, 724, 807, 810, 905, 1076, 1086, 1345, 1614, 1620, 1629, 1810, 2172, 2421, 2690, 2715, 3228, 3258, 3620, 4035, 4842, 4887, 5380, 5430, 6516, 7263, 8070, 8145, 9684, 9774, 10860, 12105, 14526, 14661, 16140, 16290, 19548, 21789, 24210, 24435, 29052, 29322, 32580, 36315, 43578, 48420, 48689, 48870, 58644, 72630, 73305, 87156, 97378, 97740, 108945, 145260, 146067, 146610, 194756, 217890, 243445, 292134, 293220, 435780, 438201, 486890, 584268, 730335, 876402, 973780, 1314603, 1460670, 1752804, 2191005, 2629206, 2921340, 3943809, 4382010, 5258412, 6573015, 7887618, 8764020, 13146030, 15775236, 19719045, 26292060, 39438090, 78876180]

約数ペア:

[(1, 78876180), (2, 39438090), (3, 26292060), (4, 19719045), (5, 15775236), (6, 13146030), (9, 8764020), (10, 7887618), (12, 6573015), (15, 5258412), (18, 4382010), (20, 3943809), (27, 2921340), (30, 2629206), (36, 2191005), (45, 1752804), (54, 1460670), (60, 1314603), (81, 973780), (90, 876402), (108, 730335), (135, 584268), (162, 486890), (180, 438201), (181, 435780), (269, 293220), (270, 292134), (324, 243445), (362, 217890), (405, 194756), (538, 146610), (540, 146067), (543, 145260), (724, 108945), (807, 97740), (810, 97378), (905, 87156), (1076, 73305), (1086, 72630), (1345, 58644), (1614, 48870), (1620, 48689), (1629, 48420), (1810, 43578), (2172, 36315), (2421, 32580), (2690, 29322), (2715, 29052), (3228, 24435), (3258, 24210), (3620, 21789), (4035, 19548), (4842, 16290), (4887, 16140), (5380, 14661), (5430, 14526), (6516, 12105), (7263, 10860), (8070, 9774), (8145, 9684)]