128664540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19319}}^1$

素因数の和:19371

約数の個数: 72

約数和(自身を含む): 400851360

約数和(自身を除く): 272186820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 19319, 38638, 57957, 77276, 96595, 115914, 173871, 193190, 231828, 289785, 347742, 386380, 579570, 695484, 714803, 869355, 1159140, 1429606, 1738710, 2144409, 2859212, 3477420, 3574015, 4288818, 6433227, 7148030, 8577636, 10722045, 12866454, 14296060, 21444090, 25732908, 32166135, 42888180, 64332270, 128664540]

約数ペア:

[(1, 128664540), (2, 64332270), (3, 42888180), (4, 32166135), (5, 25732908), (6, 21444090), (9, 14296060), (10, 12866454), (12, 10722045), (15, 8577636), (18, 7148030), (20, 6433227), (30, 4288818), (36, 3574015), (37, 3477420), (45, 2859212), (60, 2144409), (74, 1738710), (90, 1429606), (111, 1159140), (148, 869355), (180, 714803), (185, 695484), (222, 579570), (333, 386380), (370, 347742), (444, 289785), (555, 231828), (666, 193190), (740, 173871), (1110, 115914), (1332, 96595), (1665, 77276), (2220, 57957), (3330, 38638), (6660, 19319)]