31331000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 82555200

約数和(自身を除く): 51224200

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 85, 95, 97, 100, 125, 136, 152, 170, 190, 194, 200, 250, 323, 340, 380, 388, 425, 475, 485, 500, 646, 680, 760, 776, 850, 950, 970, 1000, 1292, 1615, 1649, 1700, 1843, 1900, 1940, 2125, 2375, 2425, 2584, 3230, 3298, 3400, 3686, 3800, 3880, 4250, 4750, 4850, 6460, 6596, 7372, 8075, 8245, 8500, 9215, 9500, 9700, 12125, 12920, 13192, 14744, 16150, 16490, 17000, 18430, 19000, 19400, 24250, 31331, 32300, 32980, 36860, 40375, 41225, 46075, 48500, 62662, 64600, 65960, 73720, 80750, 82450, 92150, 97000, 125324, 156655, 161500, 164900, 184300, 206125, 230375, 250648, 313310, 323000, 329800, 368600, 412250, 460750, 626620, 783275, 824500, 921500, 1253240, 1566550, 1649000, 1843000, 3133100, 3916375, 6266200, 7832750, 15665500, 31331000]

約数ペア:

[(1, 31331000), (2, 15665500), (4, 7832750), (5, 6266200), (8, 3916375), (10, 3133100), (17, 1843000), (19, 1649000), (20, 1566550), (25, 1253240), (34, 921500), (38, 824500), (40, 783275), (50, 626620), (68, 460750), (76, 412250), (85, 368600), (95, 329800), (97, 323000), (100, 313310), (125, 250648), (136, 230375), (152, 206125), (170, 184300), (190, 164900), (194, 161500), (200, 156655), (250, 125324), (323, 97000), (340, 92150), (380, 82450), (388, 80750), (425, 73720), (475, 65960), (485, 64600), (500, 62662), (646, 48500), (680, 46075), (760, 41225), (776, 40375), (850, 36860), (950, 32980), (970, 32300), (1000, 31331), (1292, 24250), (1615, 19400), (1649, 19000), (1700, 18430), (1843, 17000), (1900, 16490), (1940, 16150), (2125, 14744), (2375, 13192), (2425, 12920), (2584, 12125), (3230, 9700), (3298, 9500), (3400, 9215), (3686, 8500), (3800, 8245), (3880, 8075), (4250, 7372), (4750, 6596), (4850, 6460)]