17912900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 42325416

約数和(自身を除く): 24412516

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 257, 340, 410, 425, 514, 697, 820, 850, 1025, 1028, 1285, 1394, 1700, 2050, 2570, 2788, 3485, 4100, 4369, 5140, 6425, 6970, 8738, 10537, 12850, 13940, 17425, 17476, 21074, 21845, 25700, 34850, 42148, 43690, 52685, 69700, 87380, 105370, 109225, 179129, 210740, 218450, 263425, 358258, 436900, 526850, 716516, 895645, 1053700, 1791290, 3582580, 4478225, 8956450, 17912900]

約数ペア:

[(1, 17912900), (2, 8956450), (4, 4478225), (5, 3582580), (10, 1791290), (17, 1053700), (20, 895645), (25, 716516), (34, 526850), (41, 436900), (50, 358258), (68, 263425), (82, 218450), (85, 210740), (100, 179129), (164, 109225), (170, 105370), (205, 87380), (257, 69700), (340, 52685), (410, 43690), (425, 42148), (514, 34850), (697, 25700), (820, 21845), (850, 21074), (1025, 17476), (1028, 17425), (1285, 13940), (1394, 12850), (1700, 10537), (2050, 8738), (2570, 6970), (2788, 6425), (3485, 5140), (4100, 4369)]