21918460720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{8191}}^1$

素因数の和:8331

約数の個数: 160

約数和(自身を含む): 57340329984

約数和(自身を除く): 35421869264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 83, 104, 124, 130, 155, 166, 208, 248, 260, 310, 332, 403, 415, 496, 520, 620, 664, 806, 830, 1040, 1079, 1240, 1328, 1612, 1660, 2015, 2158, 2480, 2573, 3224, 3320, 4030, 4316, 5146, 5395, 6448, 6640, 8060, 8191, 8632, 10292, 10790, 12865, 16120, 16382, 17264, 20584, 21580, 25730, 32240, 32764, 33449, 40955, 41168, 43160, 51460, 65528, 66898, 81910, 86320, 102920, 106483, 131056, 133796, 163820, 167245, 205840, 212966, 253921, 267592, 327640, 334490, 425932, 507842, 532415, 535184, 655280, 668980, 679853, 851864, 1015684, 1064830, 1269605, 1337960, 1359706, 1703728, 2031368, 2129660, 2539210, 2675920, 2719412, 3300973, 3399265, 4062736, 4259320, 5078420, 5438824, 6601946, 6798530, 8518640, 8838089, 10156840, 10877648, 13203892, 13597060, 16504865, 17676178, 20313680, 21075443, 26407784, 27194120, 33009730, 35352356, 42150886, 44190445, 52815568, 54388240, 66019460, 70704712, 84301772, 88380890, 105377215, 132038920, 141409424, 168603544, 176761780, 210754430, 264077840, 273980759, 337207088, 353523560, 421508860, 547961518, 707047120, 843017720, 1095923036, 1369903795, 1686035440, 2191846072, 2739807590, 4383692144, 5479615180, 10959230360, 21918460720]

約数ペア:

[(1, 21918460720), (2, 10959230360), (4, 5479615180), (5, 4383692144), (8, 2739807590), (10, 2191846072), (13, 1686035440), (16, 1369903795), (20, 1095923036), (26, 843017720), (31, 707047120), (40, 547961518), (52, 421508860), (62, 353523560), (65, 337207088), (80, 273980759), (83, 264077840), (104, 210754430), (124, 176761780), (130, 168603544), (155, 141409424), (166, 132038920), (208, 105377215), (248, 88380890), (260, 84301772), (310, 70704712), (332, 66019460), (403, 54388240), (415, 52815568), (496, 44190445), (520, 42150886), (620, 35352356), (664, 33009730), (806, 27194120), (830, 26407784), (1040, 21075443), (1079, 20313680), (1240, 17676178), (1328, 16504865), (1612, 13597060), (1660, 13203892), (2015, 10877648), (2158, 10156840), (2480, 8838089), (2573, 8518640), (3224, 6798530), (3320, 6601946), (4030, 5438824), (4316, 5078420), (5146, 4259320), (5395, 4062736), (6448, 3399265), (6640, 3300973), (8060, 2719412), (8191, 2675920), (8632, 2539210), (10292, 2129660), (10790, 2031368), (12865, 1703728), (16120, 1359706), (16382, 1337960), (17264, 1269605), (20584, 1064830), (21580, 1015684), (25730, 851864), (32240, 679853), (32764, 668980), (33449, 655280), (40955, 535184), (41168, 532415), (43160, 507842), (51460, 425932), (65528, 334490), (66898, 327640), (81910, 267592), (86320, 253921), (102920, 212966), (106483, 205840), (131056, 167245), (133796, 163820)]