19651520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:338

約数の個数: 112

約数和(自身を含む): 55400448

約数和(自身を除く): 35748928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 283, 310, 320, 434, 448, 496, 560, 566, 620, 868, 992, 1085, 1120, 1132, 1240, 1415, 1736, 1981, 1984, 2170, 2240, 2264, 2480, 2830, 3472, 3962, 4340, 4528, 4960, 5660, 6944, 7924, 8680, 8773, 9056, 9905, 9920, 11320, 13888, 15848, 17360, 17546, 18112, 19810, 22640, 31696, 34720, 35092, 39620, 43865, 45280, 61411, 63392, 69440, 70184, 79240, 87730, 90560, 122822, 126784, 140368, 158480, 175460, 245644, 280736, 307055, 316960, 350920, 491288, 561472, 614110, 633920, 701840, 982576, 1228220, 1403680, 1965152, 2456440, 2807360, 3930304, 4912880, 9825760, 19651520]

約数ペア:

[(1, 19651520), (2, 9825760), (4, 4912880), (5, 3930304), (7, 2807360), (8, 2456440), (10, 1965152), (14, 1403680), (16, 1228220), (20, 982576), (28, 701840), (31, 633920), (32, 614110), (35, 561472), (40, 491288), (56, 350920), (62, 316960), (64, 307055), (70, 280736), (80, 245644), (112, 175460), (124, 158480), (140, 140368), (155, 126784), (160, 122822), (217, 90560), (224, 87730), (248, 79240), (280, 70184), (283, 69440), (310, 63392), (320, 61411), (434, 45280), (448, 43865), (496, 39620), (560, 35092), (566, 34720), (620, 31696), (868, 22640), (992, 19810), (1085, 18112), (1120, 17546), (1132, 17360), (1240, 15848), (1415, 13888), (1736, 11320), (1981, 9920), (1984, 9905), (2170, 9056), (2240, 8773), (2264, 8680), (2480, 7924), (2830, 6944), (3472, 5660), (3962, 4960), (4340, 4528)]