1640603900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{877}}^1\times {\mathrm{1439}}^1$

素因数の和:2343

約数の個数: 72

約数和(自身を含む): 3841004160

約数和(自身を除く): 2200400260

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 877, 1300, 1439, 1754, 2878, 3508, 4385, 5756, 7195, 8770, 11401, 14390, 17540, 18707, 21925, 22802, 28780, 35975, 37414, 43850, 45604, 57005, 71950, 74828, 87700, 93535, 114010, 143900, 187070, 228020, 285025, 374140, 467675, 570050, 935350, 1140100, 1262003, 1870700, 2524006, 5048012, 6310015, 12620030, 16406039, 25240060, 31550075, 32812078, 63100150, 65624156, 82030195, 126200300, 164060390, 328120780, 410150975, 820301950, 1640603900]

約数ペア:

[(1, 1640603900), (2, 820301950), (4, 410150975), (5, 328120780), (10, 164060390), (13, 126200300), (20, 82030195), (25, 65624156), (26, 63100150), (50, 32812078), (52, 31550075), (65, 25240060), (100, 16406039), (130, 12620030), (260, 6310015), (325, 5048012), (650, 2524006), (877, 1870700), (1300, 1262003), (1439, 1140100), (1754, 935350), (2878, 570050), (3508, 467675), (4385, 374140), (5756, 285025), (7195, 228020), (8770, 187070), (11401, 143900), (14390, 114010), (17540, 93535), (18707, 87700), (21925, 74828), (22802, 71950), (28780, 57005), (35975, 45604), (37414, 43850)]