18638340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 41572860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 199, 210, 223, 398, 420, 446, 597, 669, 796, 892, 995, 1115, 1194, 1338, 1393, 1561, 1990, 2230, 2388, 2676, 2786, 2985, 3122, 3345, 3980, 4179, 4460, 4683, 5572, 5970, 6244, 6690, 6965, 7805, 8358, 9366, 11940, 13380, 13930, 15610, 16716, 18732, 20895, 23415, 27860, 31220, 41790, 44377, 46830, 83580, 88754, 93660, 133131, 177508, 221885, 266262, 310639, 443770, 532524, 621278, 665655, 887540, 931917, 1242556, 1331310, 1553195, 1863834, 2662620, 3106390, 3727668, 4659585, 6212780, 9319170, 18638340]

約数ペア:

[(1, 18638340), (2, 9319170), (3, 6212780), (4, 4659585), (5, 3727668), (6, 3106390), (7, 2662620), (10, 1863834), (12, 1553195), (14, 1331310), (15, 1242556), (20, 931917), (21, 887540), (28, 665655), (30, 621278), (35, 532524), (42, 443770), (60, 310639), (70, 266262), (84, 221885), (105, 177508), (140, 133131), (199, 93660), (210, 88754), (223, 83580), (398, 46830), (420, 44377), (446, 41790), (597, 31220), (669, 27860), (796, 23415), (892, 20895), (995, 18732), (1115, 16716), (1194, 15610), (1338, 13930), (1393, 13380), (1561, 11940), (1990, 9366), (2230, 8358), (2388, 7805), (2676, 6965), (2786, 6690), (2985, 6244), (3122, 5970), (3345, 5572), (3980, 4683), (4179, 4460)]