199709880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:693

約数の個数: 128

約数和(自身を含む): 638668800

約数和(自身を除く): 438958920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 223, 255, 340, 408, 439, 446, 510, 669, 680, 878, 892, 1020, 1115, 1317, 1338, 1756, 1784, 2040, 2195, 2230, 2634, 2676, 3345, 3512, 3791, 4390, 4460, 5268, 5352, 6585, 6690, 7463, 7582, 8780, 8920, 10536, 11373, 13170, 13380, 14926, 15164, 17560, 18955, 22389, 22746, 26340, 26760, 29852, 30328, 37315, 37910, 44778, 45492, 52680, 56865, 59704, 74630, 75820, 89556, 90984, 97897, 111945, 113730, 149260, 151640, 179112, 195794, 223890, 227460, 293691, 298520, 391588, 447780, 454920, 489485, 587382, 783176, 895560, 978970, 1174764, 1468455, 1664249, 1957940, 2349528, 2936910, 3328498, 3915880, 4992747, 5873820, 6656996, 8321245, 9985494, 11747640, 13313992, 16642490, 19970988, 24963735, 33284980, 39941976, 49927470, 66569960, 99854940, 199709880]

約数ペア:

[(1, 199709880), (2, 99854940), (3, 66569960), (4, 49927470), (5, 39941976), (6, 33284980), (8, 24963735), (10, 19970988), (12, 16642490), (15, 13313992), (17, 11747640), (20, 9985494), (24, 8321245), (30, 6656996), (34, 5873820), (40, 4992747), (51, 3915880), (60, 3328498), (68, 2936910), (85, 2349528), (102, 1957940), (120, 1664249), (136, 1468455), (170, 1174764), (204, 978970), (223, 895560), (255, 783176), (340, 587382), (408, 489485), (439, 454920), (446, 447780), (510, 391588), (669, 298520), (680, 293691), (878, 227460), (892, 223890), (1020, 195794), (1115, 179112), (1317, 151640), (1338, 149260), (1756, 113730), (1784, 111945), (2040, 97897), (2195, 90984), (2230, 89556), (2634, 75820), (2676, 74630), (3345, 59704), (3512, 56865), (3791, 52680), (4390, 45492), (4460, 44778), (5268, 37910), (5352, 37315), (6585, 30328), (6690, 29852), (7463, 26760), (7582, 26340), (8780, 22746), (8920, 22389), (10536, 18955), (11373, 17560), (13170, 15164), (13380, 14926)]