209218490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2309}}^1$

素因数の和:2387

約数の個数: 64

約数和(自身を含む): 440082720

約数和(自身を除く): 230864230

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 41, 65, 82, 85, 130, 170, 205, 221, 410, 442, 533, 697, 1066, 1105, 1394, 2210, 2309, 2665, 3485, 4618, 5330, 6970, 9061, 11545, 18122, 23090, 30017, 39253, 45305, 60034, 78506, 90610, 94669, 150085, 189338, 196265, 300170, 392530, 473345, 510289, 946690, 1020578, 1230697, 1609373, 2461394, 2551445, 3218746, 5102890, 6153485, 8046865, 12306970, 16093730, 20921849, 41843698, 104609245, 209218490]

約数ペア:

[(1, 209218490), (2, 104609245), (5, 41843698), (10, 20921849), (13, 16093730), (17, 12306970), (26, 8046865), (34, 6153485), (41, 5102890), (65, 3218746), (82, 2551445), (85, 2461394), (130, 1609373), (170, 1230697), (205, 1020578), (221, 946690), (410, 510289), (442, 473345), (533, 392530), (697, 300170), (1066, 196265), (1105, 189338), (1394, 150085), (2210, 94669), (2309, 90610), (2665, 78506), (3485, 60034), (4618, 45305), (5330, 39253), (6970, 30017), (9061, 23090), (11545, 18122)]