28556430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:474

約数の個数: 128

約数和(自身を含む): 87505920

約数和(自身を除く): 58949490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 19, 21, 30, 34, 35, 38, 42, 51, 57, 70, 85, 95, 102, 105, 114, 119, 133, 170, 190, 210, 238, 255, 266, 285, 323, 357, 399, 421, 510, 570, 595, 646, 665, 714, 798, 842, 969, 1190, 1263, 1330, 1615, 1785, 1938, 1995, 2105, 2261, 2526, 2947, 3230, 3570, 3990, 4210, 4522, 4845, 5894, 6315, 6783, 7157, 7999, 8841, 9690, 11305, 12630, 13566, 14314, 14735, 15998, 17682, 21471, 22610, 23997, 29470, 33915, 35785, 39995, 42942, 44205, 47994, 50099, 55993, 67830, 71570, 79990, 88410, 100198, 107355, 111986, 119985, 135983, 150297, 167979, 214710, 239970, 250495, 271966, 279965, 300594, 335958, 407949, 500990, 559930, 679915, 751485, 815898, 839895, 951881, 1359830, 1502970, 1679790, 1903762, 2039745, 2855643, 4079490, 4759405, 5711286, 9518810, 14278215, 28556430]

約数ペア:

[(1, 28556430), (2, 14278215), (3, 9518810), (5, 5711286), (6, 4759405), (7, 4079490), (10, 2855643), (14, 2039745), (15, 1903762), (17, 1679790), (19, 1502970), (21, 1359830), (30, 951881), (34, 839895), (35, 815898), (38, 751485), (42, 679915), (51, 559930), (57, 500990), (70, 407949), (85, 335958), (95, 300594), (102, 279965), (105, 271966), (114, 250495), (119, 239970), (133, 214710), (170, 167979), (190, 150297), (210, 135983), (238, 119985), (255, 111986), (266, 107355), (285, 100198), (323, 88410), (357, 79990), (399, 71570), (421, 67830), (510, 55993), (570, 50099), (595, 47994), (646, 44205), (665, 42942), (714, 39995), (798, 35785), (842, 33915), (969, 29470), (1190, 23997), (1263, 22610), (1330, 21471), (1615, 17682), (1785, 15998), (1938, 14735), (1995, 14314), (2105, 13566), (2261, 12630), (2526, 11305), (2947, 9690), (3230, 8841), (3570, 7999), (3990, 7157), (4210, 6783), (4522, 6315), (4845, 5894)]