28829680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^2$

素因数の和:386

約数の個数: 60

約数和(自身を含む): 73528776

約数和(自身を除く): 44699096

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 440, 724, 880, 905, 1448, 1810, 1991, 2896, 3620, 3982, 7240, 7964, 9955, 14480, 15928, 19910, 31856, 32761, 39820, 65522, 79640, 131044, 159280, 163805, 262088, 327610, 360371, 524176, 655220, 720742, 1310440, 1441484, 1801855, 2620880, 2882968, 3603710, 5765936, 7207420, 14414840, 28829680]

約数ペア:

[(1, 28829680), (2, 14414840), (4, 7207420), (5, 5765936), (8, 3603710), (10, 2882968), (11, 2620880), (16, 1801855), (20, 1441484), (22, 1310440), (40, 720742), (44, 655220), (55, 524176), (80, 360371), (88, 327610), (110, 262088), (176, 163805), (181, 159280), (220, 131044), (362, 79640), (440, 65522), (724, 39820), (880, 32761), (905, 31856), (1448, 19910), (1810, 15928), (1991, 14480), (2896, 9955), (3620, 7964), (3982, 7240)]