661631360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:596

約数の個数: 128

約数和(自身を含む): 1715484960

約数和(自身を除く): 1053853600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 281, 283, 320, 416, 520, 562, 566, 640, 832, 1040, 1124, 1132, 1405, 1415, 1664, 2080, 2248, 2264, 2810, 2830, 3653, 3679, 4160, 4496, 4528, 5620, 5660, 7306, 7358, 8320, 8992, 9056, 11240, 11320, 14612, 14716, 17984, 18112, 18265, 18395, 22480, 22640, 29224, 29432, 35968, 36224, 36530, 36790, 44960, 45280, 58448, 58864, 73060, 73580, 79523, 89920, 90560, 116896, 117728, 146120, 147160, 159046, 179840, 181120, 233792, 235456, 292240, 294320, 318092, 397615, 467584, 470912, 584480, 588640, 636184, 795230, 1033799, 1168960, 1177280, 1272368, 1590460, 2067598, 2337920, 2354560, 2544736, 3180920, 4135196, 5089472, 5168995, 6361840, 8270392, 10178944, 10337990, 12723680, 16540784, 20675980, 25447360, 33081568, 41351960, 50894720, 66163136, 82703920, 132326272, 165407840, 330815680, 661631360]

約数ペア:

[(1, 661631360), (2, 330815680), (4, 165407840), (5, 132326272), (8, 82703920), (10, 66163136), (13, 50894720), (16, 41351960), (20, 33081568), (26, 25447360), (32, 20675980), (40, 16540784), (52, 12723680), (64, 10337990), (65, 10178944), (80, 8270392), (104, 6361840), (128, 5168995), (130, 5089472), (160, 4135196), (208, 3180920), (260, 2544736), (281, 2354560), (283, 2337920), (320, 2067598), (416, 1590460), (520, 1272368), (562, 1177280), (566, 1168960), (640, 1033799), (832, 795230), (1040, 636184), (1124, 588640), (1132, 584480), (1405, 470912), (1415, 467584), (1664, 397615), (2080, 318092), (2248, 294320), (2264, 292240), (2810, 235456), (2830, 233792), (3653, 181120), (3679, 179840), (4160, 159046), (4496, 147160), (4528, 146120), (5620, 117728), (5660, 116896), (7306, 90560), (7358, 89920), (8320, 79523), (8992, 73580), (9056, 73060), (11240, 58864), (11320, 58448), (14612, 45280), (14716, 44960), (17984, 36790), (18112, 36530), (18265, 36224), (18395, 35968), (22480, 29432), (22640, 29224)]