28705380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 192

約数和(自身を含む): 95993856

約数和(自身を除く): 67288476

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 31, 33, 44, 46, 55, 60, 61, 62, 66, 69, 92, 93, 110, 115, 122, 124, 132, 138, 155, 165, 183, 186, 220, 230, 244, 253, 276, 305, 310, 330, 341, 345, 366, 372, 460, 465, 506, 610, 620, 660, 671, 682, 690, 713, 732, 759, 915, 930, 1012, 1023, 1220, 1265, 1342, 1364, 1380, 1403, 1426, 1518, 1705, 1830, 1860, 1891, 2013, 2046, 2139, 2530, 2684, 2806, 2852, 3036, 3355, 3410, 3565, 3660, 3782, 3795, 4026, 4092, 4209, 4278, 5060, 5115, 5612, 5673, 6710, 6820, 7015, 7130, 7564, 7590, 7843, 8052, 8418, 8556, 9455, 10065, 10230, 10695, 11346, 13420, 14030, 14260, 15180, 15433, 15686, 16836, 18910, 20130, 20460, 20801, 21045, 21390, 22692, 23529, 28060, 28365, 30866, 31372, 37820, 39215, 40260, 41602, 42090, 42780, 43493, 46299, 47058, 56730, 61732, 62403, 77165, 78430, 83204, 84180, 86986, 92598, 94116, 104005, 113460, 117645, 124806, 130479, 154330, 156860, 173972, 185196, 208010, 217465, 231495, 235290, 249612, 260958, 308660, 312015, 416020, 434930, 462990, 470580, 478423, 521916, 624030, 652395, 869860, 925980, 956846, 1248060, 1304790, 1435269, 1913692, 2392115, 2609580, 2870538, 4784230, 5741076, 7176345, 9568460, 14352690, 28705380]

約数ペア:

[(1, 28705380), (2, 14352690), (3, 9568460), (4, 7176345), (5, 5741076), (6, 4784230), (10, 2870538), (11, 2609580), (12, 2392115), (15, 1913692), (20, 1435269), (22, 1304790), (23, 1248060), (30, 956846), (31, 925980), (33, 869860), (44, 652395), (46, 624030), (55, 521916), (60, 478423), (61, 470580), (62, 462990), (66, 434930), (69, 416020), (92, 312015), (93, 308660), (110, 260958), (115, 249612), (122, 235290), (124, 231495), (132, 217465), (138, 208010), (155, 185196), (165, 173972), (183, 156860), (186, 154330), (220, 130479), (230, 124806), (244, 117645), (253, 113460), (276, 104005), (305, 94116), (310, 92598), (330, 86986), (341, 84180), (345, 83204), (366, 78430), (372, 77165), (460, 62403), (465, 61732), (506, 56730), (610, 47058), (620, 46299), (660, 43493), (671, 42780), (682, 42090), (690, 41602), (713, 40260), (732, 39215), (759, 37820), (915, 31372), (930, 30866), (1012, 28365), (1023, 28060), (1220, 23529), (1265, 22692), (1342, 21390), (1364, 21045), (1380, 20801), (1403, 20460), (1426, 20130), (1518, 18910), (1705, 16836), (1830, 15686), (1860, 15433), (1891, 15180), (2013, 14260), (2046, 14030), (2139, 13420), (2530, 11346), (2684, 10695), (2806, 10230), (2852, 10065), (3036, 9455), (3355, 8556), (3410, 8418), (3565, 8052), (3660, 7843), (3782, 7590), (3795, 7564), (4026, 7130), (4092, 7015), (4209, 6820), (4278, 6710), (5060, 5673), (5115, 5612)]