21981981280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{3923}}^1\times {\mathrm{5003}}^1$

素因数の和:8948

約数の個数: 96

約数和(自身を含む): 59378344704

約数和(自身を除く): 37396363424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 3923, 5003, 7846, 10006, 15692, 19615, 20012, 25015, 27461, 31384, 35021, 39230, 40024, 50030, 54922, 62768, 70042, 78460, 80048, 100060, 109844, 125536, 137305, 140084, 156920, 160096, 175105, 200120, 219688, 274610, 280168, 313840, 350210, 400240, 439376, 549220, 560336, 627680, 700420, 800480, 878752, 1098440, 1120672, 1400840, 2196880, 2801680, 4393760, 5603360, 19626769, 39253538, 78507076, 98133845, 137387383, 157014152, 196267690, 274774766, 314028304, 392535380, 549549532, 628056608, 686936915, 785070760, 1099099064, 1373873830, 1570141520, 2198198128, 2747747660, 3140283040, 4396396256, 5495495320, 10990990640, 21981981280]

約数ペア:

[(1, 21981981280), (2, 10990990640), (4, 5495495320), (5, 4396396256), (7, 3140283040), (8, 2747747660), (10, 2198198128), (14, 1570141520), (16, 1373873830), (20, 1099099064), (28, 785070760), (32, 686936915), (35, 628056608), (40, 549549532), (56, 392535380), (70, 314028304), (80, 274774766), (112, 196267690), (140, 157014152), (160, 137387383), (224, 98133845), (280, 78507076), (560, 39253538), (1120, 19626769), (3923, 5603360), (5003, 4393760), (7846, 2801680), (10006, 2196880), (15692, 1400840), (19615, 1120672), (20012, 1098440), (25015, 878752), (27461, 800480), (31384, 700420), (35021, 627680), (39230, 560336), (40024, 549220), (50030, 439376), (54922, 400240), (62768, 350210), (70042, 313840), (78460, 280168), (80048, 274610), (100060, 219688), (109844, 200120), (125536, 175105), (137305, 160096), (140084, 156920)]