82720400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1009

約数の個数: 120

約数和(自身を含む): 234699264

約数和(自身を除く): 151978864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 400, 434, 496, 560, 620, 700, 775, 868, 953, 1085, 1240, 1400, 1550, 1736, 1906, 2170, 2480, 2800, 3100, 3472, 3812, 4340, 4765, 5425, 6200, 6671, 7624, 8680, 9530, 10850, 12400, 13342, 15248, 17360, 19060, 21700, 23825, 26684, 29543, 33355, 38120, 43400, 47650, 53368, 59086, 66710, 76240, 86800, 95300, 106736, 118172, 133420, 147715, 166775, 190600, 206801, 236344, 266840, 295430, 333550, 381200, 413602, 472688, 533680, 590860, 667100, 738575, 827204, 1034005, 1181720, 1334200, 1477150, 1654408, 2068010, 2363440, 2668400, 2954300, 3308816, 4136020, 5170025, 5908600, 8272040, 10340050, 11817200, 16544080, 20680100, 41360200, 82720400]

約数ペア:

[(1, 82720400), (2, 41360200), (4, 20680100), (5, 16544080), (7, 11817200), (8, 10340050), (10, 8272040), (14, 5908600), (16, 5170025), (20, 4136020), (25, 3308816), (28, 2954300), (31, 2668400), (35, 2363440), (40, 2068010), (50, 1654408), (56, 1477150), (62, 1334200), (70, 1181720), (80, 1034005), (100, 827204), (112, 738575), (124, 667100), (140, 590860), (155, 533680), (175, 472688), (200, 413602), (217, 381200), (248, 333550), (280, 295430), (310, 266840), (350, 236344), (400, 206801), (434, 190600), (496, 166775), (560, 147715), (620, 133420), (700, 118172), (775, 106736), (868, 95300), (953, 86800), (1085, 76240), (1240, 66710), (1400, 59086), (1550, 53368), (1736, 47650), (1906, 43400), (2170, 38120), (2480, 33355), (2800, 29543), (3100, 26684), (3472, 23825), (3812, 21700), (4340, 19060), (4765, 17360), (5425, 15248), (6200, 13342), (6671, 12400), (7624, 10850), (8680, 9530)]