31319840

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3209}}^1$

素因数の和:3285

約数の個数: 48

約数和(自身を含む): 75229560

約数和(自身を除く): 43909720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 3209, 4880, 6418, 9760, 12836, 16045, 25672, 32090, 51344, 64180, 102688, 128360, 195749, 256720, 391498, 513440, 782996, 978745, 1565992, 1957490, 3131984, 3914980, 6263968, 7829960, 15659920, 31319840]

約数ペア:

[(1, 31319840), (2, 15659920), (4, 7829960), (5, 6263968), (8, 3914980), (10, 3131984), (16, 1957490), (20, 1565992), (32, 978745), (40, 782996), (61, 513440), (80, 391498), (122, 256720), (160, 195749), (244, 128360), (305, 102688), (488, 64180), (610, 51344), (976, 32090), (1220, 25672), (1952, 16045), (2440, 12836), (3209, 9760), (4880, 6418)]