291213340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 685843200

約数和(自身を除く): 394629860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 107, 110, 139, 178, 214, 220, 278, 356, 428, 445, 535, 556, 695, 890, 979, 1070, 1177, 1390, 1529, 1780, 1958, 2140, 2354, 2780, 3058, 3916, 4708, 4895, 5885, 6116, 7645, 9523, 9790, 11770, 12371, 14873, 15290, 19046, 19580, 23540, 24742, 29746, 30580, 38092, 47615, 49484, 59492, 61855, 74365, 95230, 104753, 123710, 136081, 148730, 163603, 190460, 209506, 247420, 272162, 297460, 327206, 419012, 523765, 544324, 654412, 680405, 818015, 1047530, 1323697, 1360810, 1636030, 2095060, 2647394, 2721620, 3272060, 5294788, 6618485, 13236970, 14560667, 26473940, 29121334, 58242668, 72803335, 145606670, 291213340]

約数ペア:

[(1, 291213340), (2, 145606670), (4, 72803335), (5, 58242668), (10, 29121334), (11, 26473940), (20, 14560667), (22, 13236970), (44, 6618485), (55, 5294788), (89, 3272060), (107, 2721620), (110, 2647394), (139, 2095060), (178, 1636030), (214, 1360810), (220, 1323697), (278, 1047530), (356, 818015), (428, 680405), (445, 654412), (535, 544324), (556, 523765), (695, 419012), (890, 327206), (979, 297460), (1070, 272162), (1177, 247420), (1390, 209506), (1529, 190460), (1780, 163603), (1958, 148730), (2140, 136081), (2354, 123710), (2780, 104753), (3058, 95230), (3916, 74365), (4708, 61855), (4895, 59492), (5885, 49484), (6116, 47615), (7645, 38092), (9523, 30580), (9790, 29746), (11770, 24742), (12371, 23540), (14873, 19580), (15290, 19046)]