18865920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^3$

素因数の和:75

約数の個数: 144

約数和(自身を含む): 64018080

約数和(自身を除く): 45152160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 289, 320, 340, 384, 408, 480, 510, 544, 578, 640, 680, 768, 816, 867, 960, 1020, 1088, 1156, 1280, 1360, 1445, 1632, 1734, 1920, 2040, 2176, 2312, 2720, 2890, 3264, 3468, 3840, 4080, 4335, 4352, 4624, 4913, 5440, 5780, 6528, 6936, 8160, 8670, 9248, 9826, 10880, 11560, 13056, 13872, 14739, 16320, 17340, 18496, 19652, 21760, 23120, 24565, 27744, 29478, 32640, 34680, 36992, 39304, 46240, 49130, 55488, 58956, 65280, 69360, 73695, 73984, 78608, 92480, 98260, 110976, 117912, 138720, 147390, 157216, 184960, 196520, 221952, 235824, 277440, 294780, 314432, 369920, 393040, 471648, 554880, 589560, 628864, 786080, 943296, 1109760, 1179120, 1257728, 1572160, 1886592, 2358240, 3144320, 3773184, 4716480, 6288640, 9432960, 18865920]

約数ペア:

[(1, 18865920), (2, 9432960), (3, 6288640), (4, 4716480), (5, 3773184), (6, 3144320), (8, 2358240), (10, 1886592), (12, 1572160), (15, 1257728), (16, 1179120), (17, 1109760), (20, 943296), (24, 786080), (30, 628864), (32, 589560), (34, 554880), (40, 471648), (48, 393040), (51, 369920), (60, 314432), (64, 294780), (68, 277440), (80, 235824), (85, 221952), (96, 196520), (102, 184960), (120, 157216), (128, 147390), (136, 138720), (160, 117912), (170, 110976), (192, 98260), (204, 92480), (240, 78608), (255, 73984), (256, 73695), (272, 69360), (289, 65280), (320, 58956), (340, 55488), (384, 49130), (408, 46240), (480, 39304), (510, 36992), (544, 34680), (578, 32640), (640, 29478), (680, 27744), (768, 24565), (816, 23120), (867, 21760), (960, 19652), (1020, 18496), (1088, 17340), (1156, 16320), (1280, 14739), (1360, 13872), (1445, 13056), (1632, 11560), (1734, 10880), (1920, 9826), (2040, 9248), (2176, 8670), (2312, 8160), (2720, 6936), (2890, 6528), (3264, 5780), (3468, 5440), (3840, 4913), (4080, 4624), (4335, 4352)]