18829720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:777

約数の個数: 96

約数和(自身を含む): 53146800

約数和(自身を除く): 34317080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 739, 910, 980, 1274, 1478, 1820, 1960, 2548, 2956, 3185, 3640, 3695, 5096, 5173, 5912, 6370, 7390, 9607, 10346, 12740, 14780, 19214, 20692, 25480, 25865, 29560, 36211, 38428, 41384, 48035, 51730, 67249, 72422, 76856, 96070, 103460, 134498, 144844, 181055, 192140, 206920, 268996, 289688, 336245, 362110, 384280, 470743, 537992, 672490, 724220, 941486, 1344980, 1448440, 1882972, 2353715, 2689960, 3765944, 4707430, 9414860, 18829720]

約数ペア:

[(1, 18829720), (2, 9414860), (4, 4707430), (5, 3765944), (7, 2689960), (8, 2353715), (10, 1882972), (13, 1448440), (14, 1344980), (20, 941486), (26, 724220), (28, 672490), (35, 537992), (40, 470743), (49, 384280), (52, 362110), (56, 336245), (65, 289688), (70, 268996), (91, 206920), (98, 192140), (104, 181055), (130, 144844), (140, 134498), (182, 103460), (196, 96070), (245, 76856), (260, 72422), (280, 67249), (364, 51730), (392, 48035), (455, 41384), (490, 38428), (520, 36211), (637, 29560), (728, 25865), (739, 25480), (910, 20692), (980, 19214), (1274, 14780), (1478, 12740), (1820, 10346), (1960, 9607), (2548, 7390), (2956, 6370), (3185, 5912), (3640, 5173), (3695, 5096)]