15981390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 43872192

約数和(自身を除く): 27890802

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 61, 71, 82, 90, 122, 123, 142, 183, 205, 213, 246, 305, 355, 366, 369, 410, 426, 549, 610, 615, 639, 710, 738, 915, 1065, 1098, 1230, 1278, 1830, 1845, 2130, 2501, 2745, 2911, 3195, 3690, 4331, 5002, 5490, 5822, 6390, 7503, 8662, 8733, 12505, 12993, 14555, 15006, 17466, 21655, 22509, 25010, 25986, 26199, 29110, 37515, 38979, 43310, 43665, 45018, 52398, 64965, 75030, 77958, 87330, 112545, 129930, 130995, 177571, 194895, 225090, 261990, 355142, 389790, 532713, 887855, 1065426, 1598139, 1775710, 2663565, 3196278, 5327130, 7990695, 15981390]

約数ペア:

[(1, 15981390), (2, 7990695), (3, 5327130), (5, 3196278), (6, 2663565), (9, 1775710), (10, 1598139), (15, 1065426), (18, 887855), (30, 532713), (41, 389790), (45, 355142), (61, 261990), (71, 225090), (82, 194895), (90, 177571), (122, 130995), (123, 129930), (142, 112545), (183, 87330), (205, 77958), (213, 75030), (246, 64965), (305, 52398), (355, 45018), (366, 43665), (369, 43310), (410, 38979), (426, 37515), (549, 29110), (610, 26199), (615, 25986), (639, 25010), (710, 22509), (738, 21655), (915, 17466), (1065, 15006), (1098, 14555), (1230, 12993), (1278, 12505), (1830, 8733), (1845, 8662), (2130, 7503), (2501, 6390), (2745, 5822), (2911, 5490), (3195, 5002), (3690, 4331)]