397187460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{487}}^1$

素因数の和:722

約数の個数: 144

約数和(自身を含む): 1266160896

約数和(自身を除く): 868973436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 197, 207, 230, 276, 345, 394, 414, 460, 487, 591, 690, 788, 828, 974, 985, 1035, 1182, 1380, 1461, 1773, 1948, 1970, 2070, 2364, 2435, 2922, 2955, 3546, 3940, 4140, 4383, 4531, 4870, 5844, 5910, 7092, 7305, 8766, 8865, 9062, 9740, 11201, 11820, 13593, 14610, 17532, 17730, 18124, 21915, 22402, 22655, 27186, 29220, 33603, 35460, 40779, 43830, 44804, 45310, 54372, 56005, 67206, 67965, 81558, 87660, 90620, 95939, 100809, 112010, 134412, 135930, 163116, 168015, 191878, 201618, 203895, 224020, 271860, 287817, 336030, 383756, 403236, 407790, 479695, 504045, 575634, 672060, 815580, 863451, 959390, 1008090, 1151268, 1439085, 1726902, 1918780, 2016180, 2206597, 2878170, 3453804, 4317255, 4413194, 5756340, 6619791, 8634510, 8826388, 11032985, 13239582, 17269020, 19859373, 22065970, 26479164, 33098955, 39718746, 44131940, 66197910, 79437492, 99296865, 132395820, 198593730, 397187460]

約数ペア:

[(1, 397187460), (2, 198593730), (3, 132395820), (4, 99296865), (5, 79437492), (6, 66197910), (9, 44131940), (10, 39718746), (12, 33098955), (15, 26479164), (18, 22065970), (20, 19859373), (23, 17269020), (30, 13239582), (36, 11032985), (45, 8826388), (46, 8634510), (60, 6619791), (69, 5756340), (90, 4413194), (92, 4317255), (115, 3453804), (138, 2878170), (180, 2206597), (197, 2016180), (207, 1918780), (230, 1726902), (276, 1439085), (345, 1151268), (394, 1008090), (414, 959390), (460, 863451), (487, 815580), (591, 672060), (690, 575634), (788, 504045), (828, 479695), (974, 407790), (985, 403236), (1035, 383756), (1182, 336030), (1380, 287817), (1461, 271860), (1773, 224020), (1948, 203895), (1970, 201618), (2070, 191878), (2364, 168015), (2435, 163116), (2922, 135930), (2955, 134412), (3546, 112010), (3940, 100809), (4140, 95939), (4383, 90620), (4531, 87660), (4870, 81558), (5844, 67965), (5910, 67206), (7092, 56005), (7305, 54372), (8766, 45310), (8865, 44804), (9062, 43830), (9740, 40779), (11201, 35460), (11820, 33603), (13593, 29220), (14610, 27186), (17532, 22655), (17730, 22402), (18124, 21915)]