172218340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{3739}}^1$

素因数の和:3809

約数の個数: 72

約数和(自身を含む): 429770880

約数和(自身を除く): 257552540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 2303, 3290, 3739, 4606, 6580, 7478, 9212, 11515, 14956, 18695, 23030, 26173, 37390, 46060, 52346, 74780, 104692, 130865, 175733, 183211, 261730, 351466, 366422, 523460, 702932, 732844, 878665, 916055, 1230131, 1757330, 1832110, 2460262, 3514660, 3664220, 4920524, 6150655, 8610917, 12301310, 17221834, 24602620, 34443668, 43054585, 86109170, 172218340]

約数ペア:

[(1, 172218340), (2, 86109170), (4, 43054585), (5, 34443668), (7, 24602620), (10, 17221834), (14, 12301310), (20, 8610917), (28, 6150655), (35, 4920524), (47, 3664220), (49, 3514660), (70, 2460262), (94, 1832110), (98, 1757330), (140, 1230131), (188, 916055), (196, 878665), (235, 732844), (245, 702932), (329, 523460), (470, 366422), (490, 351466), (658, 261730), (940, 183211), (980, 175733), (1316, 130865), (1645, 104692), (2303, 74780), (3290, 52346), (3739, 46060), (4606, 37390), (6580, 26173), (7478, 23030), (9212, 18695), (11515, 14956)]