81849720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{35899}}^1$

素因数の和:35932

約数の個数: 64

約数和(自身を含む): 258480000

約数和(自身を除く): 176630280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 35899, 71798, 107697, 143596, 179495, 215394, 287192, 358990, 430788, 538485, 682081, 717980, 861576, 1076970, 1364162, 1435960, 2046243, 2153940, 2728324, 3410405, 4092486, 4307880, 5456648, 6820810, 8184972, 10231215, 13641620, 16369944, 20462430, 27283240, 40924860, 81849720]

約数ペア:

[(1, 81849720), (2, 40924860), (3, 27283240), (4, 20462430), (5, 16369944), (6, 13641620), (8, 10231215), (10, 8184972), (12, 6820810), (15, 5456648), (19, 4307880), (20, 4092486), (24, 3410405), (30, 2728324), (38, 2153940), (40, 2046243), (57, 1435960), (60, 1364162), (76, 1076970), (95, 861576), (114, 717980), (120, 682081), (152, 538485), (190, 430788), (228, 358990), (285, 287192), (380, 215394), (456, 179495), (570, 143596), (760, 107697), (1140, 71798), (2280, 35899)]