19515120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 160

約数和(自身を含む): 64948224

約数和(自身を除く): 45433104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 43, 48, 60, 61, 62, 80, 86, 93, 120, 122, 124, 129, 155, 172, 183, 186, 215, 240, 244, 248, 258, 305, 310, 344, 366, 372, 430, 465, 488, 496, 516, 610, 620, 645, 688, 732, 744, 860, 915, 930, 976, 1032, 1220, 1240, 1290, 1333, 1464, 1488, 1720, 1830, 1860, 1891, 2064, 2440, 2480, 2580, 2623, 2666, 2928, 3440, 3660, 3720, 3782, 3999, 4880, 5160, 5246, 5332, 5673, 6665, 7320, 7440, 7564, 7869, 7998, 9455, 10320, 10492, 10664, 11346, 13115, 13330, 14640, 15128, 15738, 15996, 18910, 19995, 20984, 21328, 22692, 26230, 26660, 28365, 30256, 31476, 31992, 37820, 39345, 39990, 41968, 45384, 52460, 53320, 56730, 62952, 63984, 75640, 78690, 79980, 81313, 90768, 104920, 106640, 113460, 125904, 151280, 157380, 159960, 162626, 209840, 226920, 243939, 314760, 319920, 325252, 406565, 453840, 487878, 629520, 650504, 813130, 975756, 1219695, 1301008, 1626260, 1951512, 2439390, 3252520, 3903024, 4878780, 6505040, 9757560, 19515120]

約数ペア:

[(1, 19515120), (2, 9757560), (3, 6505040), (4, 4878780), (5, 3903024), (6, 3252520), (8, 2439390), (10, 1951512), (12, 1626260), (15, 1301008), (16, 1219695), (20, 975756), (24, 813130), (30, 650504), (31, 629520), (40, 487878), (43, 453840), (48, 406565), (60, 325252), (61, 319920), (62, 314760), (80, 243939), (86, 226920), (93, 209840), (120, 162626), (122, 159960), (124, 157380), (129, 151280), (155, 125904), (172, 113460), (183, 106640), (186, 104920), (215, 90768), (240, 81313), (244, 79980), (248, 78690), (258, 75640), (305, 63984), (310, 62952), (344, 56730), (366, 53320), (372, 52460), (430, 45384), (465, 41968), (488, 39990), (496, 39345), (516, 37820), (610, 31992), (620, 31476), (645, 30256), (688, 28365), (732, 26660), (744, 26230), (860, 22692), (915, 21328), (930, 20984), (976, 19995), (1032, 18910), (1220, 15996), (1240, 15738), (1290, 15128), (1333, 14640), (1464, 13330), (1488, 13115), (1720, 11346), (1830, 10664), (1860, 10492), (1891, 10320), (2064, 9455), (2440, 7998), (2480, 7869), (2580, 7564), (2623, 7440), (2666, 7320), (2928, 6665), (3440, 5673), (3660, 5332), (3720, 5246), (3782, 5160), (3999, 4880)]