About the Number

388768020

388768019 ← → 388768021

2進数表記:10111001011000010000100010100

漢数字表記:三億八千八百七十六万八千二十

素因数分解:

2 2 × 3 1 × 5 1 × 47 1 × 89 1 × 1549 1

素因数の和:1697
約数の個数: 96
約数和(自身を含む): 1124928000
約数和(自身を除く): 736159980

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 89, 94, 141, 178, 188, 235, 267, 282, 356, 445, 470, 534, 564, 705, 890, 940, 1068, 1335, 1410, 1549, 1780, 2670, 2820, 3098, 4183, 4647, 5340, 6196, 7745, 8366, 9294, 12549, 15490, 16732, 18588, 20915, 23235, 25098, 30980, 41830, 46470, 50196, 62745, 72803, 83660, 92940, 125490, 137861, 145606, 218409, 250980, 275722, 291212, 364015, 413583, 436818, 551444, 689305, 728030, 827166, 873636, 1092045, 1378610, 1456060, 1654332, 2067915, 2184090, 2757220, 4135830, 4368180, 6479467, 8271660, 12958934, 19438401, 25917868, 32397335, 38876802, 64794670, 77753604, 97192005, 129589340, 194384010, 388768020]

約数ペア:
[(1, 388768020), (2, 194384010), (3, 129589340), (4, 97192005), (5, 77753604), (6, 64794670), (10, 38876802), (12, 32397335), (15, 25917868), (20, 19438401), (30, 12958934), (47, 8271660), (60, 6479467), (89, 4368180), (94, 4135830), (141, 2757220), (178, 2184090), (188, 2067915), (235, 1654332), (267, 1456060), (282, 1378610), (356, 1092045), (445, 873636), (470, 827166), (534, 728030), (564, 689305), (705, 551444), (890, 436818), (940, 413583), (1068, 364015), (1335, 291212), (1410, 275722), (1549, 250980), (1780, 218409), (2670, 145606), (2820, 137861), (3098, 125490), (4183, 92940), (4647, 83660), (5340, 72803), (6196, 62745), (7745, 50196), (8366, 46470), (9294, 41830), (12549, 30980), (15490, 25098), (16732, 23235), (18588, 20915)]

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