68865880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 175104000

約数和(自身を除く): 106238120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 37, 38, 40, 62, 74, 76, 79, 95, 124, 148, 152, 155, 158, 185, 190, 248, 296, 310, 316, 370, 380, 395, 589, 620, 632, 703, 740, 760, 790, 1147, 1178, 1240, 1406, 1480, 1501, 1580, 2294, 2356, 2449, 2812, 2923, 2945, 3002, 3160, 3515, 4588, 4712, 4898, 5624, 5735, 5846, 5890, 6004, 7030, 7505, 9176, 9796, 11470, 11692, 11780, 12008, 12245, 14060, 14615, 15010, 19592, 21793, 22940, 23384, 23560, 24490, 28120, 29230, 30020, 43586, 45880, 46531, 48980, 55537, 58460, 60040, 87172, 90613, 93062, 97960, 108965, 111074, 116920, 174344, 181226, 186124, 217930, 222148, 232655, 277685, 362452, 372248, 435860, 444296, 453065, 465310, 555370, 724904, 871720, 906130, 930620, 1110740, 1721647, 1812260, 1861240, 2221480, 3443294, 3624520, 6886588, 8608235, 13773176, 17216470, 34432940, 68865880]

約数ペア:

[(1, 68865880), (2, 34432940), (4, 17216470), (5, 13773176), (8, 8608235), (10, 6886588), (19, 3624520), (20, 3443294), (31, 2221480), (37, 1861240), (38, 1812260), (40, 1721647), (62, 1110740), (74, 930620), (76, 906130), (79, 871720), (95, 724904), (124, 555370), (148, 465310), (152, 453065), (155, 444296), (158, 435860), (185, 372248), (190, 362452), (248, 277685), (296, 232655), (310, 222148), (316, 217930), (370, 186124), (380, 181226), (395, 174344), (589, 116920), (620, 111074), (632, 108965), (703, 97960), (740, 93062), (760, 90613), (790, 87172), (1147, 60040), (1178, 58460), (1240, 55537), (1406, 48980), (1480, 46531), (1501, 45880), (1580, 43586), (2294, 30020), (2356, 29230), (2449, 28120), (2812, 24490), (2923, 23560), (2945, 23384), (3002, 22940), (3160, 21793), (3515, 19592), (4588, 15010), (4712, 14615), (4898, 14060), (5624, 12245), (5735, 12008), (5846, 11780), (5890, 11692), (6004, 11470), (7030, 9796), (7505, 9176)]