249778880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:746

約数の個数: 112

約数和(自身を含む): 648187680

約数和(自身を除く): 398408800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 97, 104, 130, 160, 194, 208, 260, 320, 388, 416, 485, 520, 619, 776, 832, 970, 1040, 1238, 1261, 1552, 1940, 2080, 2476, 2522, 3095, 3104, 3880, 4160, 4952, 5044, 6190, 6208, 6305, 7760, 8047, 9904, 10088, 12380, 12610, 15520, 16094, 19808, 20176, 24760, 25220, 31040, 32188, 39616, 40235, 40352, 49520, 50440, 60043, 64376, 80470, 80704, 99040, 100880, 120086, 128752, 160940, 198080, 201760, 240172, 257504, 300215, 321880, 403520, 480344, 515008, 600430, 643760, 780559, 960688, 1200860, 1287520, 1561118, 1921376, 2401720, 2575040, 3122236, 3842752, 3902795, 4803440, 6244472, 7805590, 9606880, 12488944, 15611180, 19213760, 24977888, 31222360, 49955776, 62444720, 124889440, 249778880]

約数ペア:

[(1, 249778880), (2, 124889440), (4, 62444720), (5, 49955776), (8, 31222360), (10, 24977888), (13, 19213760), (16, 15611180), (20, 12488944), (26, 9606880), (32, 7805590), (40, 6244472), (52, 4803440), (64, 3902795), (65, 3842752), (80, 3122236), (97, 2575040), (104, 2401720), (130, 1921376), (160, 1561118), (194, 1287520), (208, 1200860), (260, 960688), (320, 780559), (388, 643760), (416, 600430), (485, 515008), (520, 480344), (619, 403520), (776, 321880), (832, 300215), (970, 257504), (1040, 240172), (1238, 201760), (1261, 198080), (1552, 160940), (1940, 128752), (2080, 120086), (2476, 100880), (2522, 99040), (3095, 80704), (3104, 80470), (3880, 64376), (4160, 60043), (4952, 50440), (5044, 49520), (6190, 40352), (6208, 40235), (6305, 39616), (7760, 32188), (8047, 31040), (9904, 25220), (10088, 24760), (12380, 20176), (12610, 19808), (15520, 16094)]