28438620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{569}}^1$

素因数の和:612

約数の個数: 144

約数和(自身を含む): 98249760

約数和(自身を除く): 69811140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 569, 588, 595, 714, 735, 833, 980, 1020, 1138, 1190, 1428, 1470, 1666, 1707, 1785, 2276, 2380, 2499, 2845, 2940, 3332, 3414, 3570, 3983, 4165, 4998, 5690, 6828, 7140, 7966, 8330, 8535, 9673, 9996, 11380, 11949, 12495, 15932, 16660, 17070, 19346, 19915, 23898, 24990, 27881, 29019, 34140, 38692, 39830, 47796, 48365, 49980, 55762, 58038, 59745, 67711, 79660, 83643, 96730, 111524, 116076, 119490, 135422, 139405, 145095, 167286, 193460, 203133, 238980, 270844, 278810, 290190, 334572, 338555, 406266, 418215, 473977, 557620, 580380, 677110, 812532, 836430, 947954, 1015665, 1354220, 1421931, 1672860, 1895908, 2031330, 2369885, 2843862, 4062660, 4739770, 5687724, 7109655, 9479540, 14219310, 28438620]

約数ペア:

[(1, 28438620), (2, 14219310), (3, 9479540), (4, 7109655), (5, 5687724), (6, 4739770), (7, 4062660), (10, 2843862), (12, 2369885), (14, 2031330), (15, 1895908), (17, 1672860), (20, 1421931), (21, 1354220), (28, 1015665), (30, 947954), (34, 836430), (35, 812532), (42, 677110), (49, 580380), (51, 557620), (60, 473977), (68, 418215), (70, 406266), (84, 338555), (85, 334572), (98, 290190), (102, 278810), (105, 270844), (119, 238980), (140, 203133), (147, 193460), (170, 167286), (196, 145095), (204, 139405), (210, 135422), (238, 119490), (245, 116076), (255, 111524), (294, 96730), (340, 83643), (357, 79660), (420, 67711), (476, 59745), (490, 58038), (510, 55762), (569, 49980), (588, 48365), (595, 47796), (714, 39830), (735, 38692), (833, 34140), (980, 29019), (1020, 27881), (1138, 24990), (1190, 23898), (1428, 19915), (1470, 19346), (1666, 17070), (1707, 16660), (1785, 15932), (2276, 12495), (2380, 11949), (2499, 11380), (2845, 9996), (2940, 9673), (3332, 8535), (3414, 8330), (3570, 7966), (3983, 7140), (4165, 6828), (4998, 5690)]