309845620

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 800755200

約数和(自身を除く): 490909580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 47, 49, 62, 70, 94, 98, 124, 140, 155, 188, 196, 217, 235, 245, 310, 329, 343, 434, 470, 490, 620, 658, 686, 868, 940, 961, 980, 1085, 1316, 1372, 1457, 1519, 1645, 1715, 1922, 2170, 2303, 2914, 3038, 3290, 3430, 3844, 4340, 4606, 4805, 5828, 6076, 6580, 6727, 6860, 7285, 7595, 9212, 9610, 10199, 10633, 11515, 13454, 14570, 15190, 16121, 19220, 20398, 21266, 23030, 26908, 29140, 30380, 32242, 33635, 40796, 42532, 45167, 46060, 47089, 50995, 53165, 64484, 67270, 71393, 80605, 90334, 94178, 101990, 106330, 134540, 142786, 161210, 180668, 188356, 203980, 212660, 225835, 235445, 285572, 316169, 322420, 329623, 356965, 451670, 470890, 499751, 632338, 659246, 713930, 903340, 941780, 999502, 1264676, 1318492, 1427860, 1580845, 1648115, 1999004, 2213183, 2498755, 3161690, 3296230, 4426366, 4997510, 6323380, 6592460, 8852732, 9995020, 11065915, 15492281, 22131830, 30984562, 44263660, 61969124, 77461405, 154922810, 309845620]

約数ペア:

[(1, 309845620), (2, 154922810), (4, 77461405), (5, 61969124), (7, 44263660), (10, 30984562), (14, 22131830), (20, 15492281), (28, 11065915), (31, 9995020), (35, 8852732), (47, 6592460), (49, 6323380), (62, 4997510), (70, 4426366), (94, 3296230), (98, 3161690), (124, 2498755), (140, 2213183), (155, 1999004), (188, 1648115), (196, 1580845), (217, 1427860), (235, 1318492), (245, 1264676), (310, 999502), (329, 941780), (343, 903340), (434, 713930), (470, 659246), (490, 632338), (620, 499751), (658, 470890), (686, 451670), (868, 356965), (940, 329623), (961, 322420), (980, 316169), (1085, 285572), (1316, 235445), (1372, 225835), (1457, 212660), (1519, 203980), (1645, 188356), (1715, 180668), (1922, 161210), (2170, 142786), (2303, 134540), (2914, 106330), (3038, 101990), (3290, 94178), (3430, 90334), (3844, 80605), (4340, 71393), (4606, 67270), (4805, 64484), (5828, 53165), (6076, 50995), (6580, 47089), (6727, 46060), (6860, 45167), (7285, 42532), (7595, 40796), (9212, 33635), (9610, 32242), (10199, 30380), (10633, 29140), (11515, 26908), (13454, 23030), (14570, 21266), (15190, 20398), (16121, 19220)]