72440820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 230302800

約数和(自身を除く): 157861980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 73, 74, 90, 111, 146, 148, 149, 180, 185, 219, 222, 292, 298, 333, 365, 370, 438, 444, 447, 555, 596, 657, 666, 730, 740, 745, 876, 894, 1095, 1110, 1314, 1332, 1341, 1460, 1490, 1665, 1788, 2190, 2220, 2235, 2628, 2682, 2701, 2980, 3285, 3330, 4380, 4470, 5364, 5402, 5513, 6570, 6660, 6705, 8103, 8940, 10804, 10877, 11026, 13140, 13410, 13505, 16206, 16539, 21754, 22052, 24309, 26820, 27010, 27565, 32412, 32631, 33078, 40515, 43508, 48618, 49617, 54020, 54385, 55130, 65262, 66156, 81030, 82695, 97236, 97893, 99234, 108770, 110260, 121545, 130524, 162060, 163155, 165390, 195786, 198468, 217540, 243090, 248085, 326310, 330780, 391572, 402449, 486180, 489465, 496170, 652620, 804898, 978930, 992340, 1207347, 1609796, 1957860, 2012245, 2414694, 3622041, 4024490, 4829388, 6036735, 7244082, 8048980, 12073470, 14488164, 18110205, 24146940, 36220410, 72440820]

約数ペア:

[(1, 72440820), (2, 36220410), (3, 24146940), (4, 18110205), (5, 14488164), (6, 12073470), (9, 8048980), (10, 7244082), (12, 6036735), (15, 4829388), (18, 4024490), (20, 3622041), (30, 2414694), (36, 2012245), (37, 1957860), (45, 1609796), (60, 1207347), (73, 992340), (74, 978930), (90, 804898), (111, 652620), (146, 496170), (148, 489465), (149, 486180), (180, 402449), (185, 391572), (219, 330780), (222, 326310), (292, 248085), (298, 243090), (333, 217540), (365, 198468), (370, 195786), (438, 165390), (444, 163155), (447, 162060), (555, 130524), (596, 121545), (657, 110260), (666, 108770), (730, 99234), (740, 97893), (745, 97236), (876, 82695), (894, 81030), (1095, 66156), (1110, 65262), (1314, 55130), (1332, 54385), (1341, 54020), (1460, 49617), (1490, 48618), (1665, 43508), (1788, 40515), (2190, 33078), (2220, 32631), (2235, 32412), (2628, 27565), (2682, 27010), (2701, 26820), (2980, 24309), (3285, 22052), (3330, 21754), (4380, 16539), (4470, 16206), (5364, 13505), (5402, 13410), (5513, 13140), (6570, 11026), (6660, 10877), (6705, 10804), (8103, 8940)]