28798380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 97353984

約数和(自身を除く): 68555604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 397, 403, 465, 468, 558, 585, 620, 780, 794, 806, 930, 1116, 1170, 1191, 1209, 1395, 1588, 1612, 1860, 1985, 2015, 2340, 2382, 2418, 2790, 3573, 3627, 3970, 4030, 4764, 4836, 5161, 5580, 5955, 6045, 7146, 7254, 7940, 8060, 10322, 11910, 12090, 12307, 14292, 14508, 15483, 17865, 18135, 20644, 23820, 24180, 24614, 25805, 30966, 35730, 36270, 36921, 46449, 49228, 51610, 61535, 61932, 71460, 72540, 73842, 77415, 92898, 103220, 110763, 123070, 147684, 154830, 159991, 184605, 185796, 221526, 232245, 246140, 309660, 319982, 369210, 443052, 464490, 479973, 553815, 639964, 738420, 799955, 928980, 959946, 1107630, 1439919, 1599910, 1919892, 2215260, 2399865, 2879838, 3199820, 4799730, 5759676, 7199595, 9599460, 14399190, 28798380]

約数ペア:

[(1, 28798380), (2, 14399190), (3, 9599460), (4, 7199595), (5, 5759676), (6, 4799730), (9, 3199820), (10, 2879838), (12, 2399865), (13, 2215260), (15, 1919892), (18, 1599910), (20, 1439919), (26, 1107630), (30, 959946), (31, 928980), (36, 799955), (39, 738420), (45, 639964), (52, 553815), (60, 479973), (62, 464490), (65, 443052), (78, 369210), (90, 319982), (93, 309660), (117, 246140), (124, 232245), (130, 221526), (155, 185796), (156, 184605), (180, 159991), (186, 154830), (195, 147684), (234, 123070), (260, 110763), (279, 103220), (310, 92898), (372, 77415), (390, 73842), (397, 72540), (403, 71460), (465, 61932), (468, 61535), (558, 51610), (585, 49228), (620, 46449), (780, 36921), (794, 36270), (806, 35730), (930, 30966), (1116, 25805), (1170, 24614), (1191, 24180), (1209, 23820), (1395, 20644), (1588, 18135), (1612, 17865), (1860, 15483), (1985, 14508), (2015, 14292), (2340, 12307), (2382, 12090), (2418, 11910), (2790, 10322), (3573, 8060), (3627, 7940), (3970, 7254), (4030, 7146), (4764, 6045), (4836, 5955), (5161, 5580)]