291498580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 660667392

約数和(自身を除く): 369168812

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 97, 124, 131, 148, 155, 185, 194, 262, 310, 370, 388, 485, 524, 620, 655, 740, 970, 1147, 1310, 1940, 2294, 2620, 3007, 3589, 4061, 4588, 4847, 5735, 6014, 7178, 8122, 9694, 11470, 12028, 12707, 14356, 15035, 16244, 17945, 19388, 20305, 22940, 24235, 25414, 30070, 35890, 40610, 48470, 50828, 60140, 63535, 71780, 81220, 96940, 111259, 127070, 150257, 222518, 254140, 300514, 393917, 445036, 470159, 556295, 601028, 751285, 787834, 940318, 1112590, 1502570, 1575668, 1880636, 1969585, 2225180, 2350795, 3005140, 3939170, 4701590, 7878340, 9403180, 14574929, 29149858, 58299716, 72874645, 145749290, 291498580]

約数ペア:

[(1, 291498580), (2, 145749290), (4, 72874645), (5, 58299716), (10, 29149858), (20, 14574929), (31, 9403180), (37, 7878340), (62, 4701590), (74, 3939170), (97, 3005140), (124, 2350795), (131, 2225180), (148, 1969585), (155, 1880636), (185, 1575668), (194, 1502570), (262, 1112590), (310, 940318), (370, 787834), (388, 751285), (485, 601028), (524, 556295), (620, 470159), (655, 445036), (740, 393917), (970, 300514), (1147, 254140), (1310, 222518), (1940, 150257), (2294, 127070), (2620, 111259), (3007, 96940), (3589, 81220), (4061, 71780), (4588, 63535), (4847, 60140), (5735, 50828), (6014, 48470), (7178, 40610), (8122, 35890), (9694, 30070), (11470, 25414), (12028, 24235), (12707, 22940), (14356, 20305), (15035, 19388), (16244, 17945)]