About the Number

388996930

388996929 ← → 388996931

2進数表記:10111001011111001111101000010

漢数字表記:三億八千八百九十九万六千九百三十

素因数分解:

2 1 × 5 1 × 7 1 × 23 1 × 41 1 × 71 1 × 83 1

素因数の和:232
約数の個数: 128
約数和(自身を含む): 877879296
約数和(自身を除く): 488882366

約数列:
[1, 2, 5, 7, 10, 14, 23, 35, 41, 46, 70, 71, 82, 83, 115, 142, 161, 166, 205, 230, 287, 322, 355, 410, 415, 497, 574, 581, 710, 805, 830, 943, 994, 1162, 1435, 1610, 1633, 1886, 1909, 2485, 2870, 2905, 2911, 3266, 3403, 3818, 4715, 4970, 5810, 5822, 5893, 6601, 6806, 8165, 9430, 9545, 11431, 11786, 13202, 13363, 14555, 16330, 17015, 19090, 20377, 22862, 23821, 26726, 29110, 29465, 33005, 34030, 40754, 41251, 47642, 57155, 58930, 66010, 66815, 66953, 78269, 82502, 101885, 114310, 119105, 133630, 133906, 135539, 156538, 203770, 206255, 238210, 241613, 271078, 334765, 391345, 412510, 468671, 483226, 547883, 669530, 677695, 782690, 937342, 948773, 1095766, 1208065, 1355390, 1691291, 1897546, 2343355, 2416130, 2739415, 3382582, 4686710, 4743865, 5478830, 5557099, 8456455, 9487730, 11114198, 16912910, 27785495, 38899693, 55570990, 77799386, 194498465, 388996930]

約数ペア:
[(1, 388996930), (2, 194498465), (5, 77799386), (7, 55570990), (10, 38899693), (14, 27785495), (23, 16912910), (35, 11114198), (41, 9487730), (46, 8456455), (70, 5557099), (71, 5478830), (82, 4743865), (83, 4686710), (115, 3382582), (142, 2739415), (161, 2416130), (166, 2343355), (205, 1897546), (230, 1691291), (287, 1355390), (322, 1208065), (355, 1095766), (410, 948773), (415, 937342), (497, 782690), (574, 677695), (581, 669530), (710, 547883), (805, 483226), (830, 468671), (943, 412510), (994, 391345), (1162, 334765), (1435, 271078), (1610, 241613), (1633, 238210), (1886, 206255), (1909, 203770), (2485, 156538), (2870, 135539), (2905, 133906), (2911, 133630), (3266, 119105), (3403, 114310), (3818, 101885), (4715, 82502), (4970, 78269), (5810, 66953), (5822, 66815), (5893, 66010), (6601, 58930), (6806, 57155), (8165, 47642), (9430, 41251), (9545, 40754), (11431, 34030), (11786, 33005), (13202, 29465), (13363, 29110), (14555, 26726), (16330, 23821), (17015, 22862), (19090, 20377)]

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