81343840

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 203575680

約数和(自身を除く): 122231840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 47, 58, 80, 94, 116, 145, 160, 188, 232, 235, 290, 373, 376, 464, 470, 580, 746, 752, 928, 940, 1160, 1363, 1492, 1504, 1865, 1880, 2320, 2726, 2984, 3730, 3760, 4640, 5452, 5968, 6815, 7460, 7520, 10817, 10904, 11936, 13630, 14920, 17531, 21634, 21808, 27260, 29840, 35062, 43268, 43616, 54085, 54520, 59680, 70124, 86536, 87655, 108170, 109040, 140248, 173072, 175310, 216340, 218080, 280496, 346144, 350620, 432680, 508399, 560992, 701240, 865360, 1016798, 1402480, 1730720, 2033596, 2541995, 2804960, 4067192, 5083990, 8134384, 10167980, 16268768, 20335960, 40671920, 81343840]

約数ペア:

[(1, 81343840), (2, 40671920), (4, 20335960), (5, 16268768), (8, 10167980), (10, 8134384), (16, 5083990), (20, 4067192), (29, 2804960), (32, 2541995), (40, 2033596), (47, 1730720), (58, 1402480), (80, 1016798), (94, 865360), (116, 701240), (145, 560992), (160, 508399), (188, 432680), (232, 350620), (235, 346144), (290, 280496), (373, 218080), (376, 216340), (464, 175310), (470, 173072), (580, 140248), (746, 109040), (752, 108170), (928, 87655), (940, 86536), (1160, 70124), (1363, 59680), (1492, 54520), (1504, 54085), (1865, 43616), (1880, 43268), (2320, 35062), (2726, 29840), (2984, 27260), (3730, 21808), (3760, 21634), (4640, 17531), (5452, 14920), (5968, 13630), (6815, 11936), (7460, 10904), (7520, 10817)]