28014980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 72576000

約数和(自身を除く): 44561020

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 119, 140, 149, 158, 170, 238, 298, 316, 340, 395, 476, 553, 595, 596, 745, 790, 1043, 1106, 1190, 1343, 1490, 1580, 2086, 2212, 2380, 2533, 2686, 2765, 2980, 4172, 5066, 5215, 5372, 5530, 6715, 9401, 10132, 10430, 11060, 11771, 12665, 13430, 17731, 18802, 20860, 23542, 25330, 26860, 35462, 37604, 47005, 47084, 50660, 58855, 70924, 82397, 88655, 94010, 117710, 164794, 177310, 188020, 200107, 235420, 329588, 354620, 400214, 411985, 800428, 823970, 1000535, 1400749, 1647940, 2001070, 2801498, 4002140, 5602996, 7003745, 14007490, 28014980]

約数ペア:

[(1, 28014980), (2, 14007490), (4, 7003745), (5, 5602996), (7, 4002140), (10, 2801498), (14, 2001070), (17, 1647940), (20, 1400749), (28, 1000535), (34, 823970), (35, 800428), (68, 411985), (70, 400214), (79, 354620), (85, 329588), (119, 235420), (140, 200107), (149, 188020), (158, 177310), (170, 164794), (238, 117710), (298, 94010), (316, 88655), (340, 82397), (395, 70924), (476, 58855), (553, 50660), (595, 47084), (596, 47005), (745, 37604), (790, 35462), (1043, 26860), (1106, 25330), (1190, 23542), (1343, 20860), (1490, 18802), (1580, 17731), (2086, 13430), (2212, 12665), (2380, 11771), (2533, 11060), (2686, 10430), (2765, 10132), (2980, 9401), (4172, 6715), (5066, 5530), (5215, 5372)]