20879400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 72316800

約数和(自身を除く): 51437400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 25, 30, 34, 40, 46, 50, 51, 60, 68, 69, 75, 85, 89, 92, 100, 102, 115, 120, 136, 138, 150, 170, 178, 184, 200, 204, 230, 255, 267, 276, 300, 340, 345, 356, 391, 408, 425, 445, 460, 510, 534, 552, 575, 600, 680, 690, 712, 782, 850, 890, 920, 1020, 1068, 1150, 1173, 1275, 1335, 1380, 1513, 1564, 1700, 1725, 1780, 1955, 2040, 2047, 2136, 2225, 2300, 2346, 2550, 2670, 2760, 3026, 3128, 3400, 3450, 3560, 3910, 4094, 4450, 4539, 4600, 4692, 5100, 5340, 5865, 6052, 6141, 6675, 6900, 7565, 7820, 8188, 8900, 9078, 9384, 9775, 10200, 10235, 10680, 11730, 12104, 12282, 13350, 13800, 15130, 15640, 16376, 17800, 18156, 19550, 20470, 22695, 23460, 24564, 26700, 29325, 30260, 30705, 34799, 36312, 37825, 39100, 40940, 45390, 46920, 49128, 51175, 53400, 58650, 60520, 61410, 69598, 75650, 78200, 81880, 90780, 102350, 104397, 113475, 117300, 122820, 139196, 151300, 153525, 173995, 181560, 204700, 208794, 226950, 234600, 245640, 278392, 302600, 307050, 347990, 409400, 417588, 453900, 521985, 614100, 695980, 835176, 869975, 907800, 1043970, 1228200, 1391960, 1739950, 2087940, 2609925, 3479900, 4175880, 5219850, 6959800, 10439700, 20879400]

約数ペア:

[(1, 20879400), (2, 10439700), (3, 6959800), (4, 5219850), (5, 4175880), (6, 3479900), (8, 2609925), (10, 2087940), (12, 1739950), (15, 1391960), (17, 1228200), (20, 1043970), (23, 907800), (24, 869975), (25, 835176), (30, 695980), (34, 614100), (40, 521985), (46, 453900), (50, 417588), (51, 409400), (60, 347990), (68, 307050), (69, 302600), (75, 278392), (85, 245640), (89, 234600), (92, 226950), (100, 208794), (102, 204700), (115, 181560), (120, 173995), (136, 153525), (138, 151300), (150, 139196), (170, 122820), (178, 117300), (184, 113475), (200, 104397), (204, 102350), (230, 90780), (255, 81880), (267, 78200), (276, 75650), (300, 69598), (340, 61410), (345, 60520), (356, 58650), (391, 53400), (408, 51175), (425, 49128), (445, 46920), (460, 45390), (510, 40940), (534, 39100), (552, 37825), (575, 36312), (600, 34799), (680, 30705), (690, 30260), (712, 29325), (782, 26700), (850, 24564), (890, 23460), (920, 22695), (1020, 20470), (1068, 19550), (1150, 18156), (1173, 17800), (1275, 16376), (1335, 15640), (1380, 15130), (1513, 13800), (1564, 13350), (1700, 12282), (1725, 12104), (1780, 11730), (1955, 10680), (2040, 10235), (2047, 10200), (2136, 9775), (2225, 9384), (2300, 9078), (2346, 8900), (2550, 8188), (2670, 7820), (2760, 7565), (3026, 6900), (3128, 6675), (3400, 6141), (3450, 6052), (3560, 5865), (3910, 5340), (4094, 5100), (4450, 4692), (4539, 4600)]