28784520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2215

約数の個数: 96

約数和(自身を含む): 96122520

約数和(自身を除く): 67338000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1665, 2161, 2220, 2664, 3330, 4322, 4440, 6483, 6660, 8644, 10805, 12966, 13320, 17288, 19449, 21610, 25932, 32415, 38898, 43220, 51864, 64830, 77796, 79957, 86440, 97245, 129660, 155592, 159914, 194490, 239871, 259320, 319828, 388980, 399785, 479742, 639656, 719613, 777960, 799570, 959484, 1199355, 1439226, 1599140, 1918968, 2398710, 2878452, 3198280, 3598065, 4797420, 5756904, 7196130, 9594840, 14392260, 28784520]

約数ペア:

[(1, 28784520), (2, 14392260), (3, 9594840), (4, 7196130), (5, 5756904), (6, 4797420), (8, 3598065), (9, 3198280), (10, 2878452), (12, 2398710), (15, 1918968), (18, 1599140), (20, 1439226), (24, 1199355), (30, 959484), (36, 799570), (37, 777960), (40, 719613), (45, 639656), (60, 479742), (72, 399785), (74, 388980), (90, 319828), (111, 259320), (120, 239871), (148, 194490), (180, 159914), (185, 155592), (222, 129660), (296, 97245), (333, 86440), (360, 79957), (370, 77796), (444, 64830), (555, 51864), (666, 43220), (740, 38898), (888, 32415), (1110, 25932), (1332, 21610), (1480, 19449), (1665, 17288), (2161, 13320), (2220, 12966), (2664, 10805), (3330, 8644), (4322, 6660), (4440, 6483)]