19800038880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{75967}}^1$

素因数の和:76169

約数の個数: 144

約数和(自身を含む): 67941828864

約数和(自身を除く): 48141789984

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 181, 240, 288, 360, 362, 480, 543, 720, 724, 905, 1086, 1440, 1448, 1629, 1810, 2172, 2715, 2896, 3258, 3620, 4344, 5430, 5792, 6516, 7240, 8145, 8688, 10860, 13032, 14480, 16290, 17376, 21720, 26064, 28960, 32580, 43440, 52128, 65160, 75967, 86880, 130320, 151934, 227901, 260640, 303868, 379835, 455802, 607736, 683703, 759670, 911604, 1139505, 1215472, 1367406, 1519340, 1823208, 2279010, 2430944, 2734812, 3038680, 3418515, 3646416, 4558020, 5469624, 6077360, 6837030, 7292832, 9116040, 10939248, 12154720, 13674060, 13750027, 18232080, 21878496, 27348120, 27500054, 36464160, 41250081, 54696240, 55000108, 68750135, 82500162, 109392480, 110000216, 123750243, 137500270, 165000324, 206250405, 220000432, 247500486, 275000540, 330000648, 412500810, 440000864, 495000972, 550001080, 618751215, 660001296, 825001620, 990001944, 1100002160, 1237502430, 1320002592, 1650003240, 1980003888, 2200004320, 2475004860, 3300006480, 3960007776, 4950009720, 6600012960, 9900019440, 19800038880]

約数ペア:

[(1, 19800038880), (2, 9900019440), (3, 6600012960), (4, 4950009720), (5, 3960007776), (6, 3300006480), (8, 2475004860), (9, 2200004320), (10, 1980003888), (12, 1650003240), (15, 1320002592), (16, 1237502430), (18, 1100002160), (20, 990001944), (24, 825001620), (30, 660001296), (32, 618751215), (36, 550001080), (40, 495000972), (45, 440000864), (48, 412500810), (60, 330000648), (72, 275000540), (80, 247500486), (90, 220000432), (96, 206250405), (120, 165000324), (144, 137500270), (160, 123750243), (180, 110000216), (181, 109392480), (240, 82500162), (288, 68750135), (360, 55000108), (362, 54696240), (480, 41250081), (543, 36464160), (720, 27500054), (724, 27348120), (905, 21878496), (1086, 18232080), (1440, 13750027), (1448, 13674060), (1629, 12154720), (1810, 10939248), (2172, 9116040), (2715, 7292832), (2896, 6837030), (3258, 6077360), (3620, 5469624), (4344, 4558020), (5430, 3646416), (5792, 3418515), (6516, 3038680), (7240, 2734812), (8145, 2430944), (8688, 2279010), (10860, 1823208), (13032, 1519340), (14480, 1367406), (16290, 1215472), (17376, 1139505), (21720, 911604), (26064, 759670), (28960, 683703), (32580, 607736), (43440, 455802), (52128, 379835), (65160, 303868), (75967, 260640), (86880, 227901), (130320, 151934)]