18147856240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{90703}}^1$

素因数の和:90818

約数の個数: 80

約数和(自身を含む): 43931938176

約数和(自身を除く): 25784081936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 205, 244, 305, 328, 410, 488, 610, 656, 820, 976, 1220, 1640, 2440, 2501, 3280, 4880, 5002, 10004, 12505, 20008, 25010, 40016, 50020, 90703, 100040, 181406, 200080, 362812, 453515, 725624, 907030, 1451248, 1814060, 3628120, 3718823, 5532883, 7256240, 7437646, 11065766, 14875292, 18594115, 22131532, 27664415, 29750584, 37188230, 44263064, 55328830, 59501168, 74376460, 88526128, 110657660, 148752920, 221315320, 226848203, 297505840, 442630640, 453696406, 907392812, 1134241015, 1814785624, 2268482030, 3629571248, 4536964060, 9073928120, 18147856240]

約数ペア:

[(1, 18147856240), (2, 9073928120), (4, 4536964060), (5, 3629571248), (8, 2268482030), (10, 1814785624), (16, 1134241015), (20, 907392812), (40, 453696406), (41, 442630640), (61, 297505840), (80, 226848203), (82, 221315320), (122, 148752920), (164, 110657660), (205, 88526128), (244, 74376460), (305, 59501168), (328, 55328830), (410, 44263064), (488, 37188230), (610, 29750584), (656, 27664415), (820, 22131532), (976, 18594115), (1220, 14875292), (1640, 11065766), (2440, 7437646), (2501, 7256240), (3280, 5532883), (4880, 3718823), (5002, 3628120), (10004, 1814060), (12505, 1451248), (20008, 907030), (25010, 725624), (40016, 453515), (50020, 362812), (90703, 200080), (100040, 181406)]