245056240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:759

約数の個数: 160

約数和(自身を含む): 691955712

約数和(自身を除く): 446899472

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 124, 130, 143, 155, 176, 208, 220, 248, 260, 286, 310, 341, 403, 440, 496, 520, 572, 620, 682, 691, 715, 806, 880, 1040, 1144, 1240, 1364, 1382, 1430, 1612, 1705, 2015, 2288, 2480, 2728, 2764, 2860, 3224, 3410, 3455, 4030, 4433, 5456, 5528, 5720, 6448, 6820, 6910, 7601, 8060, 8866, 8983, 11056, 11440, 13640, 13820, 15202, 16120, 17732, 17966, 21421, 22165, 27280, 27640, 30404, 32240, 35464, 35932, 38005, 42842, 44330, 44915, 55280, 60808, 70928, 71864, 76010, 85684, 88660, 89830, 98813, 107105, 121616, 143728, 152020, 171368, 177320, 179660, 197626, 214210, 235631, 278473, 304040, 342736, 354640, 359320, 395252, 428420, 471262, 494065, 556946, 608080, 718640, 790504, 856840, 942524, 988130, 1113892, 1178155, 1392365, 1581008, 1713680, 1885048, 1976260, 2227784, 2356310, 2784730, 3063203, 3770096, 3952520, 4455568, 4712620, 5569460, 6126406, 7905040, 9425240, 11138920, 12252812, 15316015, 18850480, 22277840, 24505624, 30632030, 49011248, 61264060, 122528120, 245056240]

約数ペア:

[(1, 245056240), (2, 122528120), (4, 61264060), (5, 49011248), (8, 30632030), (10, 24505624), (11, 22277840), (13, 18850480), (16, 15316015), (20, 12252812), (22, 11138920), (26, 9425240), (31, 7905040), (40, 6126406), (44, 5569460), (52, 4712620), (55, 4455568), (62, 3952520), (65, 3770096), (80, 3063203), (88, 2784730), (104, 2356310), (110, 2227784), (124, 1976260), (130, 1885048), (143, 1713680), (155, 1581008), (176, 1392365), (208, 1178155), (220, 1113892), (248, 988130), (260, 942524), (286, 856840), (310, 790504), (341, 718640), (403, 608080), (440, 556946), (496, 494065), (520, 471262), (572, 428420), (620, 395252), (682, 359320), (691, 354640), (715, 342736), (806, 304040), (880, 278473), (1040, 235631), (1144, 214210), (1240, 197626), (1364, 179660), (1382, 177320), (1430, 171368), (1612, 152020), (1705, 143728), (2015, 121616), (2288, 107105), (2480, 98813), (2728, 89830), (2764, 88660), (2860, 85684), (3224, 76010), (3410, 71864), (3455, 70928), (4030, 60808), (4433, 55280), (5456, 44915), (5528, 44330), (5720, 42842), (6448, 38005), (6820, 35932), (6910, 35464), (7601, 32240), (8060, 30404), (8866, 27640), (8983, 27280), (11056, 22165), (11440, 21421), (13640, 17966), (13820, 17732), (15202, 16120)]