421644860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 1115638272

約数和(自身を除く): 693993412

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 140, 142, 169, 182, 251, 260, 284, 338, 355, 364, 455, 497, 502, 676, 710, 845, 910, 923, 994, 1004, 1183, 1255, 1420, 1690, 1757, 1820, 1846, 1988, 2366, 2485, 2510, 3263, 3380, 3514, 3692, 4615, 4732, 4970, 5020, 5915, 6461, 6526, 7028, 8785, 9230, 9940, 11830, 11999, 12922, 13052, 16315, 17570, 17821, 18460, 22841, 23660, 23998, 25844, 32305, 32630, 35140, 35642, 42419, 45682, 47996, 59995, 64610, 65260, 71284, 83993, 84838, 89105, 91364, 114205, 119990, 124747, 129220, 167986, 169676, 178210, 212095, 228410, 231673, 239980, 249494, 296933, 335972, 356420, 419965, 424190, 456820, 463346, 498988, 593866, 623735, 839930, 848380, 926692, 1158365, 1187732, 1247470, 1484665, 1621711, 1679860, 2316730, 2494940, 2969330, 3011749, 3243422, 4633460, 5938660, 6023498, 6486844, 8108555, 12046996, 15058745, 16217110, 21082243, 30117490, 32434220, 42164486, 60234980, 84328972, 105411215, 210822430, 421644860]

約数ペア:

[(1, 421644860), (2, 210822430), (4, 105411215), (5, 84328972), (7, 60234980), (10, 42164486), (13, 32434220), (14, 30117490), (20, 21082243), (26, 16217110), (28, 15058745), (35, 12046996), (52, 8108555), (65, 6486844), (70, 6023498), (71, 5938660), (91, 4633460), (130, 3243422), (140, 3011749), (142, 2969330), (169, 2494940), (182, 2316730), (251, 1679860), (260, 1621711), (284, 1484665), (338, 1247470), (355, 1187732), (364, 1158365), (455, 926692), (497, 848380), (502, 839930), (676, 623735), (710, 593866), (845, 498988), (910, 463346), (923, 456820), (994, 424190), (1004, 419965), (1183, 356420), (1255, 335972), (1420, 296933), (1690, 249494), (1757, 239980), (1820, 231673), (1846, 228410), (1988, 212095), (2366, 178210), (2485, 169676), (2510, 167986), (3263, 129220), (3380, 124747), (3514, 119990), (3692, 114205), (4615, 91364), (4732, 89105), (4970, 84838), (5020, 83993), (5915, 71284), (6461, 65260), (6526, 64610), (7028, 59995), (8785, 47996), (9230, 45682), (9940, 42419), (11830, 35642), (11999, 35140), (12922, 32630), (13052, 32305), (16315, 25844), (17570, 23998), (17821, 23660), (18460, 22841)]