20031780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:549

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40932060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 41, 51, 60, 68, 82, 85, 102, 123, 164, 170, 204, 205, 246, 255, 340, 410, 479, 492, 510, 615, 697, 820, 958, 1020, 1230, 1394, 1437, 1916, 2091, 2395, 2460, 2788, 2874, 3485, 4182, 4790, 5748, 6970, 7185, 8143, 8364, 9580, 10455, 13940, 14370, 16286, 19639, 20910, 24429, 28740, 32572, 39278, 40715, 41820, 48858, 58917, 78556, 81430, 97716, 98195, 117834, 122145, 162860, 196390, 235668, 244290, 294585, 333863, 392780, 488580, 589170, 667726, 1001589, 1178340, 1335452, 1669315, 2003178, 3338630, 4006356, 5007945, 6677260, 10015890, 20031780]

約数ペア:

[(1, 20031780), (2, 10015890), (3, 6677260), (4, 5007945), (5, 4006356), (6, 3338630), (10, 2003178), (12, 1669315), (15, 1335452), (17, 1178340), (20, 1001589), (30, 667726), (34, 589170), (41, 488580), (51, 392780), (60, 333863), (68, 294585), (82, 244290), (85, 235668), (102, 196390), (123, 162860), (164, 122145), (170, 117834), (204, 98195), (205, 97716), (246, 81430), (255, 78556), (340, 58917), (410, 48858), (479, 41820), (492, 40715), (510, 39278), (615, 32572), (697, 28740), (820, 24429), (958, 20910), (1020, 19639), (1230, 16286), (1394, 14370), (1437, 13940), (1916, 10455), (2091, 9580), (2395, 8364), (2460, 8143), (2788, 7185), (2874, 6970), (3485, 5748), (4182, 4790)]