28507290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 128

約数和(自身を含む): 84049920

約数和(自身を除く): 55542630

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 31, 35, 42, 58, 62, 70, 87, 93, 105, 145, 151, 155, 174, 186, 203, 210, 217, 290, 302, 310, 406, 434, 435, 453, 465, 609, 651, 755, 870, 899, 906, 930, 1015, 1057, 1085, 1218, 1302, 1510, 1798, 2030, 2114, 2170, 2265, 2697, 3045, 3171, 3255, 4379, 4495, 4530, 4681, 5285, 5394, 6090, 6293, 6342, 6510, 8758, 8990, 9362, 10570, 12586, 13137, 13485, 14043, 15855, 18879, 21895, 23405, 26274, 26970, 28086, 30653, 31465, 31710, 32767, 37758, 43790, 46810, 61306, 62930, 65534, 65685, 70215, 91959, 94395, 98301, 131370, 135749, 140430, 153265, 163835, 183918, 188790, 196602, 271498, 306530, 327670, 407247, 459795, 491505, 678745, 814494, 919590, 950243, 983010, 1357490, 1900486, 2036235, 2850729, 4072470, 4751215, 5701458, 9502430, 14253645, 28507290]

約数ペア:

[(1, 28507290), (2, 14253645), (3, 9502430), (5, 5701458), (6, 4751215), (7, 4072470), (10, 2850729), (14, 2036235), (15, 1900486), (21, 1357490), (29, 983010), (30, 950243), (31, 919590), (35, 814494), (42, 678745), (58, 491505), (62, 459795), (70, 407247), (87, 327670), (93, 306530), (105, 271498), (145, 196602), (151, 188790), (155, 183918), (174, 163835), (186, 153265), (203, 140430), (210, 135749), (217, 131370), (290, 98301), (302, 94395), (310, 91959), (406, 70215), (434, 65685), (435, 65534), (453, 62930), (465, 61306), (609, 46810), (651, 43790), (755, 37758), (870, 32767), (899, 31710), (906, 31465), (930, 30653), (1015, 28086), (1057, 26970), (1085, 26274), (1218, 23405), (1302, 21895), (1510, 18879), (1798, 15855), (2030, 14043), (2114, 13485), (2170, 13137), (2265, 12586), (2697, 10570), (3045, 9362), (3171, 8990), (3255, 8758), (4379, 6510), (4495, 6342), (4530, 6293), (4681, 6090), (5285, 5394)]