20784664320

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{773239}}^1$

素因数の和:773270

約数の個数: 144

約数和(自身を含む): 75864122880

約数和(自身を除く): 55079458560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 26880, 773239, 1546478, 2319717, 3092956, 3866195, 4639434, 5412673, 6185912, 7732390, 9278868, 10825346, 11598585, 12371824, 15464780, 16238019, 18557736, 21650692, 23197170, 24743648, 27063365, 30929560, 32476038, 37115472, 43301384, 46394340, 49487296, 54126730, 61859120, 64952076, 74230944, 81190095, 86602768, 92788680, 98974592, 108253460, 123718240, 129904152, 148461888, 162380190, 173205536, 185577360, 197949184, 216506920, 247436480, 259808304, 296923776, 324760380, 346411072, 371154720, 433013840, 494872960, 519616608, 593847552, 649520760, 692822144, 742309440, 866027680, 989745920, 1039233216, 1299041520, 1385644288, 1484618880, 1732055360, 2078466432, 2598083040, 2969237760, 3464110720, 4156932864, 5196166080, 6928221440, 10392332160, 20784664320]

約数ペア:

[(1, 20784664320), (2, 10392332160), (3, 6928221440), (4, 5196166080), (5, 4156932864), (6, 3464110720), (7, 2969237760), (8, 2598083040), (10, 2078466432), (12, 1732055360), (14, 1484618880), (15, 1385644288), (16, 1299041520), (20, 1039233216), (21, 989745920), (24, 866027680), (28, 742309440), (30, 692822144), (32, 649520760), (35, 593847552), (40, 519616608), (42, 494872960), (48, 433013840), (56, 371154720), (60, 346411072), (64, 324760380), (70, 296923776), (80, 259808304), (84, 247436480), (96, 216506920), (105, 197949184), (112, 185577360), (120, 173205536), (128, 162380190), (140, 148461888), (160, 129904152), (168, 123718240), (192, 108253460), (210, 98974592), (224, 92788680), (240, 86602768), (256, 81190095), (280, 74230944), (320, 64952076), (336, 61859120), (384, 54126730), (420, 49487296), (448, 46394340), (480, 43301384), (560, 37115472), (640, 32476038), (672, 30929560), (768, 27063365), (840, 24743648), (896, 23197170), (960, 21650692), (1120, 18557736), (1280, 16238019), (1344, 15464780), (1680, 12371824), (1792, 11598585), (1920, 10825346), (2240, 9278868), (2688, 7732390), (3360, 6185912), (3840, 5412673), (4480, 4639434), (5376, 3866195), (6720, 3092956), (8960, 2319717), (13440, 1546478), (26880, 773239)]