19892040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 192

約数和(自身を含む): 73872000

約数和(自身を除く): 53979960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 49, 51, 56, 60, 68, 70, 84, 85, 98, 102, 105, 119, 120, 136, 140, 147, 168, 170, 196, 199, 204, 210, 238, 245, 255, 280, 294, 340, 357, 392, 398, 408, 420, 476, 490, 510, 588, 595, 597, 680, 714, 735, 796, 833, 840, 952, 980, 995, 1020, 1176, 1190, 1194, 1393, 1428, 1470, 1592, 1666, 1785, 1960, 1990, 2040, 2380, 2388, 2499, 2786, 2856, 2940, 2985, 3332, 3383, 3570, 3980, 4165, 4179, 4760, 4776, 4998, 5572, 5880, 5970, 6664, 6766, 6965, 7140, 7960, 8330, 8358, 9751, 9996, 10149, 11144, 11940, 12495, 13532, 13930, 14280, 16660, 16716, 16915, 19502, 19992, 20298, 20895, 23681, 23880, 24990, 27064, 27860, 29253, 33320, 33432, 33830, 39004, 40596, 41790, 47362, 48755, 49980, 50745, 55720, 58506, 67660, 71043, 78008, 81192, 83580, 94724, 97510, 99960, 101490, 117012, 118405, 135320, 142086, 146265, 165767, 167160, 189448, 195020, 202980, 234024, 236810, 284172, 292530, 331534, 355215, 390040, 405960, 473620, 497301, 568344, 585060, 663068, 710430, 828835, 947240, 994602, 1170120, 1326136, 1420860, 1657670, 1989204, 2486505, 2841720, 3315340, 3978408, 4973010, 6630680, 9946020, 19892040]

約数ペア:

[(1, 19892040), (2, 9946020), (3, 6630680), (4, 4973010), (5, 3978408), (6, 3315340), (7, 2841720), (8, 2486505), (10, 1989204), (12, 1657670), (14, 1420860), (15, 1326136), (17, 1170120), (20, 994602), (21, 947240), (24, 828835), (28, 710430), (30, 663068), (34, 585060), (35, 568344), (40, 497301), (42, 473620), (49, 405960), (51, 390040), (56, 355215), (60, 331534), (68, 292530), (70, 284172), (84, 236810), (85, 234024), (98, 202980), (102, 195020), (105, 189448), (119, 167160), (120, 165767), (136, 146265), (140, 142086), (147, 135320), (168, 118405), (170, 117012), (196, 101490), (199, 99960), (204, 97510), (210, 94724), (238, 83580), (245, 81192), (255, 78008), (280, 71043), (294, 67660), (340, 58506), (357, 55720), (392, 50745), (398, 49980), (408, 48755), (420, 47362), (476, 41790), (490, 40596), (510, 39004), (588, 33830), (595, 33432), (597, 33320), (680, 29253), (714, 27860), (735, 27064), (796, 24990), (833, 23880), (840, 23681), (952, 20895), (980, 20298), (995, 19992), (1020, 19502), (1176, 16915), (1190, 16716), (1194, 16660), (1393, 14280), (1428, 13930), (1470, 13532), (1592, 12495), (1666, 11940), (1785, 11144), (1960, 10149), (1990, 9996), (2040, 9751), (2380, 8358), (2388, 8330), (2499, 7960), (2786, 7140), (2856, 6965), (2940, 6766), (2985, 6664), (3332, 5970), (3383, 5880), (3570, 5572), (3980, 4998), (4165, 4776), (4179, 4760)]