38906240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 100465920

約数和(自身を除く): 61559680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 53, 62, 64, 74, 80, 106, 124, 128, 148, 155, 160, 185, 212, 248, 265, 296, 310, 320, 370, 424, 496, 530, 592, 620, 640, 740, 848, 992, 1060, 1147, 1184, 1240, 1480, 1643, 1696, 1961, 1984, 2120, 2294, 2368, 2480, 2960, 3286, 3392, 3922, 3968, 4240, 4588, 4736, 4960, 5735, 5920, 6572, 6784, 7844, 8215, 8480, 9176, 9805, 9920, 11470, 11840, 13144, 15688, 16430, 16960, 18352, 19610, 19840, 22940, 23680, 26288, 31376, 32860, 33920, 36704, 39220, 45880, 52576, 60791, 62752, 65720, 73408, 78440, 91760, 105152, 121582, 125504, 131440, 146816, 156880, 183520, 210304, 243164, 251008, 262880, 303955, 313760, 367040, 486328, 525760, 607910, 627520, 734080, 972656, 1051520, 1215820, 1255040, 1945312, 2431640, 3890624, 4863280, 7781248, 9726560, 19453120, 38906240]

約数ペア:

[(1, 38906240), (2, 19453120), (4, 9726560), (5, 7781248), (8, 4863280), (10, 3890624), (16, 2431640), (20, 1945312), (31, 1255040), (32, 1215820), (37, 1051520), (40, 972656), (53, 734080), (62, 627520), (64, 607910), (74, 525760), (80, 486328), (106, 367040), (124, 313760), (128, 303955), (148, 262880), (155, 251008), (160, 243164), (185, 210304), (212, 183520), (248, 156880), (265, 146816), (296, 131440), (310, 125504), (320, 121582), (370, 105152), (424, 91760), (496, 78440), (530, 73408), (592, 65720), (620, 62752), (640, 60791), (740, 52576), (848, 45880), (992, 39220), (1060, 36704), (1147, 33920), (1184, 32860), (1240, 31376), (1480, 26288), (1643, 23680), (1696, 22940), (1961, 19840), (1984, 19610), (2120, 18352), (2294, 16960), (2368, 16430), (2480, 15688), (2960, 13144), (3286, 11840), (3392, 11470), (3922, 9920), (3968, 9805), (4240, 9176), (4588, 8480), (4736, 8215), (4960, 7844), (5735, 6784), (5920, 6572)]