4223440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 10999296

約数和(自身を除く): 6775856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 131, 155, 208, 248, 260, 262, 310, 403, 496, 520, 524, 620, 655, 806, 1040, 1048, 1240, 1310, 1612, 1703, 2015, 2096, 2480, 2620, 3224, 3406, 4030, 4061, 5240, 6448, 6812, 8060, 8122, 8515, 10480, 13624, 16120, 16244, 17030, 20305, 27248, 32240, 32488, 34060, 40610, 52793, 64976, 68120, 81220, 105586, 136240, 162440, 211172, 263965, 324880, 422344, 527930, 844688, 1055860, 2111720, 4223440]

約数ペア:

[(1, 4223440), (2, 2111720), (4, 1055860), (5, 844688), (8, 527930), (10, 422344), (13, 324880), (16, 263965), (20, 211172), (26, 162440), (31, 136240), (40, 105586), (52, 81220), (62, 68120), (65, 64976), (80, 52793), (104, 40610), (124, 34060), (130, 32488), (131, 32240), (155, 27248), (208, 20305), (248, 17030), (260, 16244), (262, 16120), (310, 13624), (403, 10480), (496, 8515), (520, 8122), (524, 8060), (620, 6812), (655, 6448), (806, 5240), (1040, 4061), (1048, 4030), (1240, 3406), (1310, 3224), (1612, 2620), (1703, 2480), (2015, 2096)]