20148475280

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{373}}^1\times {\mathrm{6961}}^1$

素因数の和:7444

約数の個数: 80

約数和(自身を含む): 47461847664

約数和(自身を除く): 27313372384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 373, 388, 485, 746, 776, 970, 1492, 1552, 1865, 1940, 2984, 3730, 3880, 5968, 6961, 7460, 7760, 13922, 14920, 27844, 29840, 34805, 36181, 55688, 69610, 72362, 111376, 139220, 144724, 180905, 278440, 289448, 361810, 556880, 578896, 675217, 723620, 1350434, 1447240, 2596453, 2700868, 2894480, 3376085, 5192906, 5401736, 6752170, 10385812, 10803472, 12982265, 13504340, 20771624, 25964530, 27008680, 41543248, 51929060, 54017360, 103858120, 207716240, 251855941, 503711882, 1007423764, 1259279705, 2014847528, 2518559410, 4029695056, 5037118820, 10074237640, 20148475280]

約数ペア:

[(1, 20148475280), (2, 10074237640), (4, 5037118820), (5, 4029695056), (8, 2518559410), (10, 2014847528), (16, 1259279705), (20, 1007423764), (40, 503711882), (80, 251855941), (97, 207716240), (194, 103858120), (373, 54017360), (388, 51929060), (485, 41543248), (746, 27008680), (776, 25964530), (970, 20771624), (1492, 13504340), (1552, 12982265), (1865, 10803472), (1940, 10385812), (2984, 6752170), (3730, 5401736), (3880, 5192906), (5968, 3376085), (6961, 2894480), (7460, 2700868), (7760, 2596453), (13922, 1447240), (14920, 1350434), (27844, 723620), (29840, 675217), (34805, 578896), (36181, 556880), (55688, 361810), (69610, 289448), (72362, 278440), (111376, 180905), (139220, 144724)]