61991860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^2$

素因数の和:162

約数の個数: 108

約数和(自身を含む): 163017036

約数和(自身を除く): 101025176

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 61, 68, 70, 85, 98, 119, 122, 140, 170, 196, 238, 244, 245, 305, 340, 427, 476, 490, 595, 610, 833, 854, 980, 1037, 1190, 1220, 1666, 1708, 2074, 2135, 2380, 2989, 3332, 3721, 4148, 4165, 4270, 5185, 5978, 7259, 7442, 8330, 8540, 10370, 11956, 14518, 14884, 14945, 16660, 18605, 20740, 26047, 29036, 29890, 36295, 37210, 50813, 52094, 59780, 63257, 72590, 74420, 101626, 104188, 126514, 130235, 145180, 182329, 203252, 253028, 254065, 260470, 316285, 364658, 442799, 508130, 520940, 632570, 729316, 885598, 911645, 1016260, 1265140, 1771196, 1823290, 2213995, 3099593, 3646580, 4427990, 6199186, 8855980, 12398372, 15497965, 30995930, 61991860]

約数ペア:

[(1, 61991860), (2, 30995930), (4, 15497965), (5, 12398372), (7, 8855980), (10, 6199186), (14, 4427990), (17, 3646580), (20, 3099593), (28, 2213995), (34, 1823290), (35, 1771196), (49, 1265140), (61, 1016260), (68, 911645), (70, 885598), (85, 729316), (98, 632570), (119, 520940), (122, 508130), (140, 442799), (170, 364658), (196, 316285), (238, 260470), (244, 254065), (245, 253028), (305, 203252), (340, 182329), (427, 145180), (476, 130235), (490, 126514), (595, 104188), (610, 101626), (833, 74420), (854, 72590), (980, 63257), (1037, 59780), (1190, 52094), (1220, 50813), (1666, 37210), (1708, 36295), (2074, 29890), (2135, 29036), (2380, 26047), (2989, 20740), (3332, 18605), (3721, 16660), (4148, 14945), (4165, 14884), (4270, 14518), (5185, 11956), (5978, 10370), (7259, 8540), (7442, 8330)]