20394900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 71495424

約数和(自身を除く): 51100524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 30, 31, 34, 36, 43, 45, 50, 51, 60, 62, 68, 75, 85, 86, 90, 93, 100, 102, 124, 129, 150, 153, 155, 170, 172, 180, 186, 204, 215, 225, 255, 258, 279, 300, 306, 310, 340, 372, 387, 425, 430, 450, 465, 510, 516, 527, 558, 612, 620, 645, 731, 765, 774, 775, 850, 860, 900, 930, 1020, 1054, 1075, 1116, 1275, 1290, 1333, 1395, 1462, 1530, 1548, 1550, 1581, 1700, 1860, 1935, 2108, 2150, 2193, 2325, 2550, 2580, 2635, 2666, 2790, 2924, 3060, 3100, 3162, 3225, 3655, 3825, 3870, 3999, 4300, 4386, 4650, 4743, 5100, 5270, 5332, 5580, 6324, 6450, 6579, 6665, 6975, 7310, 7650, 7740, 7905, 7998, 8772, 9300, 9486, 9675, 10540, 10965, 11997, 12900, 13158, 13175, 13330, 13950, 14620, 15300, 15810, 15996, 18275, 18972, 19350, 19995, 21930, 22661, 23715, 23994, 26316, 26350, 26660, 27900, 31620, 32895, 33325, 36550, 38700, 39525, 39990, 43860, 45322, 47430, 47988, 52700, 54825, 59985, 65790, 66650, 67983, 73100, 79050, 79980, 90644, 94860, 99975, 109650, 113305, 118575, 119970, 131580, 133300, 135966, 158100, 164475, 199950, 203949, 219300, 226610, 237150, 239940, 271932, 299925, 328950, 339915, 399900, 407898, 453220, 474300, 566525, 599850, 657900, 679830, 815796, 1019745, 1133050, 1199700, 1359660, 1699575, 2039490, 2266100, 3399150, 4078980, 5098725, 6798300, 10197450, 20394900]

約数ペア:

[(1, 20394900), (2, 10197450), (3, 6798300), (4, 5098725), (5, 4078980), (6, 3399150), (9, 2266100), (10, 2039490), (12, 1699575), (15, 1359660), (17, 1199700), (18, 1133050), (20, 1019745), (25, 815796), (30, 679830), (31, 657900), (34, 599850), (36, 566525), (43, 474300), (45, 453220), (50, 407898), (51, 399900), (60, 339915), (62, 328950), (68, 299925), (75, 271932), (85, 239940), (86, 237150), (90, 226610), (93, 219300), (100, 203949), (102, 199950), (124, 164475), (129, 158100), (150, 135966), (153, 133300), (155, 131580), (170, 119970), (172, 118575), (180, 113305), (186, 109650), (204, 99975), (215, 94860), (225, 90644), (255, 79980), (258, 79050), (279, 73100), (300, 67983), (306, 66650), (310, 65790), (340, 59985), (372, 54825), (387, 52700), (425, 47988), (430, 47430), (450, 45322), (465, 43860), (510, 39990), (516, 39525), (527, 38700), (558, 36550), (612, 33325), (620, 32895), (645, 31620), (731, 27900), (765, 26660), (774, 26350), (775, 26316), (850, 23994), (860, 23715), (900, 22661), (930, 21930), (1020, 19995), (1054, 19350), (1075, 18972), (1116, 18275), (1275, 15996), (1290, 15810), (1333, 15300), (1395, 14620), (1462, 13950), (1530, 13330), (1548, 13175), (1550, 13158), (1581, 12900), (1700, 11997), (1860, 10965), (1935, 10540), (2108, 9675), (2150, 9486), (2193, 9300), (2325, 8772), (2550, 7998), (2580, 7905), (2635, 7740), (2666, 7650), (2790, 7310), (2924, 6975), (3060, 6665), (3100, 6579), (3162, 6450), (3225, 6324), (3655, 5580), (3825, 5332), (3870, 5270), (3999, 5100), (4300, 4743), (4386, 4650)]