19198720

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 47020176

約数和(自身を除く): 27821456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 283, 320, 424, 530, 566, 640, 848, 1060, 1132, 1280, 1415, 1696, 2120, 2264, 2830, 3392, 4240, 4528, 5660, 6784, 8480, 9056, 11320, 13568, 14999, 16960, 18112, 22640, 29998, 33920, 36224, 45280, 59996, 67840, 72448, 74995, 90560, 119992, 149990, 181120, 239984, 299980, 362240, 479968, 599960, 959936, 1199920, 1919872, 2399840, 3839744, 4799680, 9599360, 19198720]

約数ペア:

[(1, 19198720), (2, 9599360), (4, 4799680), (5, 3839744), (8, 2399840), (10, 1919872), (16, 1199920), (20, 959936), (32, 599960), (40, 479968), (53, 362240), (64, 299980), (80, 239984), (106, 181120), (128, 149990), (160, 119992), (212, 90560), (256, 74995), (265, 72448), (283, 67840), (320, 59996), (424, 45280), (530, 36224), (566, 33920), (640, 29998), (848, 22640), (1060, 18112), (1132, 16960), (1280, 14999), (1415, 13568), (1696, 11320), (2120, 9056), (2264, 8480), (2830, 6784), (3392, 5660), (4240, 4528)]