28655640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 192

約数和(自身を含む): 104090400

約数和(自身を除く): 75434760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 157, 169, 180, 195, 216, 234, 260, 270, 312, 314, 338, 351, 360, 390, 468, 471, 507, 520, 540, 585, 628, 676, 702, 780, 785, 845, 936, 942, 1014, 1080, 1170, 1256, 1352, 1404, 1413, 1521, 1560, 1570, 1690, 1755, 1884, 2028, 2041, 2340, 2355, 2535, 2808, 2826, 3042, 3140, 3380, 3510, 3768, 4056, 4082, 4239, 4563, 4680, 4710, 5070, 5652, 6084, 6123, 6280, 6760, 7020, 7065, 7605, 8164, 8478, 9126, 9420, 10140, 10205, 11304, 12168, 12246, 14040, 14130, 15210, 16328, 16956, 18252, 18369, 18840, 20280, 20410, 21195, 22815, 24492, 26533, 28260, 30420, 30615, 33912, 36504, 36738, 40820, 42390, 45630, 48984, 53066, 55107, 56520, 60840, 61230, 73476, 79599, 81640, 84780, 91260, 91845, 106132, 110214, 122460, 132665, 146952, 159198, 169560, 182520, 183690, 212264, 220428, 238797, 244920, 265330, 275535, 318396, 367380, 397995, 440856, 477594, 530660, 551070, 636792, 716391, 734760, 795990, 955188, 1061320, 1102140, 1193985, 1432782, 1591980, 1910376, 2204280, 2387970, 2865564, 3183960, 3581955, 4775940, 5731128, 7163910, 9551880, 14327820, 28655640]

約数ペア:

[(1, 28655640), (2, 14327820), (3, 9551880), (4, 7163910), (5, 5731128), (6, 4775940), (8, 3581955), (9, 3183960), (10, 2865564), (12, 2387970), (13, 2204280), (15, 1910376), (18, 1591980), (20, 1432782), (24, 1193985), (26, 1102140), (27, 1061320), (30, 955188), (36, 795990), (39, 734760), (40, 716391), (45, 636792), (52, 551070), (54, 530660), (60, 477594), (65, 440856), (72, 397995), (78, 367380), (90, 318396), (104, 275535), (108, 265330), (117, 244920), (120, 238797), (130, 220428), (135, 212264), (156, 183690), (157, 182520), (169, 169560), (180, 159198), (195, 146952), (216, 132665), (234, 122460), (260, 110214), (270, 106132), (312, 91845), (314, 91260), (338, 84780), (351, 81640), (360, 79599), (390, 73476), (468, 61230), (471, 60840), (507, 56520), (520, 55107), (540, 53066), (585, 48984), (628, 45630), (676, 42390), (702, 40820), (780, 36738), (785, 36504), (845, 33912), (936, 30615), (942, 30420), (1014, 28260), (1080, 26533), (1170, 24492), (1256, 22815), (1352, 21195), (1404, 20410), (1413, 20280), (1521, 18840), (1560, 18369), (1570, 18252), (1690, 16956), (1755, 16328), (1884, 15210), (2028, 14130), (2041, 14040), (2340, 12246), (2355, 12168), (2535, 11304), (2808, 10205), (2826, 10140), (3042, 9420), (3140, 9126), (3380, 8478), (3510, 8164), (3768, 7605), (4056, 7065), (4082, 7020), (4239, 6760), (4563, 6280), (4680, 6123), (4710, 6084), (5070, 5652)]