42855640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 111974400

約数和(自身を除く): 69118760

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 85, 95, 107, 124, 136, 152, 155, 170, 190, 214, 248, 310, 323, 340, 380, 428, 527, 535, 589, 620, 646, 680, 760, 856, 1054, 1070, 1178, 1240, 1292, 1615, 1819, 2033, 2108, 2140, 2356, 2584, 2635, 2945, 3230, 3317, 3638, 4066, 4216, 4280, 4712, 5270, 5890, 6460, 6634, 7276, 8132, 9095, 10013, 10165, 10540, 11780, 12920, 13268, 14552, 16264, 16585, 18190, 20026, 20330, 21080, 23560, 26536, 33170, 34561, 36380, 40052, 40660, 50065, 56389, 63023, 66340, 69122, 72760, 80104, 81320, 100130, 112778, 126046, 132680, 138244, 172805, 200260, 225556, 252092, 276488, 281945, 315115, 345610, 400520, 451112, 504184, 563890, 630230, 691220, 1071391, 1127780, 1260460, 1382440, 2142782, 2255560, 2520920, 4285564, 5356955, 8571128, 10713910, 21427820, 42855640]

約数ペア:

[(1, 42855640), (2, 21427820), (4, 10713910), (5, 8571128), (8, 5356955), (10, 4285564), (17, 2520920), (19, 2255560), (20, 2142782), (31, 1382440), (34, 1260460), (38, 1127780), (40, 1071391), (62, 691220), (68, 630230), (76, 563890), (85, 504184), (95, 451112), (107, 400520), (124, 345610), (136, 315115), (152, 281945), (155, 276488), (170, 252092), (190, 225556), (214, 200260), (248, 172805), (310, 138244), (323, 132680), (340, 126046), (380, 112778), (428, 100130), (527, 81320), (535, 80104), (589, 72760), (620, 69122), (646, 66340), (680, 63023), (760, 56389), (856, 50065), (1054, 40660), (1070, 40052), (1178, 36380), (1240, 34561), (1292, 33170), (1615, 26536), (1819, 23560), (2033, 21080), (2108, 20330), (2140, 20026), (2356, 18190), (2584, 16585), (2635, 16264), (2945, 14552), (3230, 13268), (3317, 12920), (3638, 11780), (4066, 10540), (4216, 10165), (4280, 10013), (4712, 9095), (5270, 8132), (5890, 7276), (6460, 6634)]