31513360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 76995072

約数和(自身を除く): 45481712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 97, 124, 131, 155, 194, 248, 262, 310, 388, 485, 496, 524, 620, 655, 776, 970, 1048, 1240, 1310, 1552, 1940, 2096, 2480, 2620, 3007, 3880, 4061, 5240, 6014, 7760, 8122, 10480, 12028, 12707, 15035, 16244, 20305, 24056, 25414, 30070, 32488, 40610, 48112, 50828, 60140, 63535, 64976, 81220, 101656, 120280, 127070, 162440, 203312, 240560, 254140, 324880, 393917, 508280, 787834, 1016560, 1575668, 1969585, 3151336, 3939170, 6302672, 7878340, 15756680, 31513360]

約数ペア:

[(1, 31513360), (2, 15756680), (4, 7878340), (5, 6302672), (8, 3939170), (10, 3151336), (16, 1969585), (20, 1575668), (31, 1016560), (40, 787834), (62, 508280), (80, 393917), (97, 324880), (124, 254140), (131, 240560), (155, 203312), (194, 162440), (248, 127070), (262, 120280), (310, 101656), (388, 81220), (485, 64976), (496, 63535), (524, 60140), (620, 50828), (655, 48112), (776, 40610), (970, 32488), (1048, 30070), (1240, 25414), (1310, 24056), (1552, 20305), (1940, 16244), (2096, 15035), (2480, 12707), (2620, 12028), (3007, 10480), (3880, 8122), (4061, 7760), (5240, 6014)]