2004313990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:518

約数の個数: 128

約数和(自身を含む): 4522106880

約数和(自身を除く): 2517792890

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 173, 190, 217, 266, 281, 310, 346, 434, 562, 589, 665, 865, 1085, 1178, 1211, 1330, 1405, 1730, 1967, 2170, 2422, 2810, 2945, 3287, 3934, 4123, 5339, 5363, 5890, 6055, 6574, 8246, 8711, 9835, 10678, 10726, 12110, 16435, 17422, 19670, 20615, 23009, 26695, 26815, 32870, 37373, 37541, 41230, 43555, 46018, 48613, 53390, 53630, 60977, 74746, 75082, 87110, 97226, 101897, 115045, 121954, 165509, 186865, 187705, 203794, 230090, 243065, 304885, 331018, 340291, 373730, 375410, 486130, 509485, 609770, 680582, 713279, 827545, 923647, 1018970, 1158563, 1426558, 1507003, 1655090, 1701455, 1847294, 2317126, 3014006, 3402910, 3566395, 4618235, 5792815, 6465529, 7132790, 7535015, 9236470, 10549021, 11585630, 12931058, 15070030, 21098042, 28633057, 32327645, 52745105, 57266114, 64655290, 105490210, 143165285, 200431399, 286330570, 400862798, 1002156995, 2004313990]

約数ペア:

[(1, 2004313990), (2, 1002156995), (5, 400862798), (7, 286330570), (10, 200431399), (14, 143165285), (19, 105490210), (31, 64655290), (35, 57266114), (38, 52745105), (62, 32327645), (70, 28633057), (95, 21098042), (133, 15070030), (155, 12931058), (173, 11585630), (190, 10549021), (217, 9236470), (266, 7535015), (281, 7132790), (310, 6465529), (346, 5792815), (434, 4618235), (562, 3566395), (589, 3402910), (665, 3014006), (865, 2317126), (1085, 1847294), (1178, 1701455), (1211, 1655090), (1330, 1507003), (1405, 1426558), (1730, 1158563), (1967, 1018970), (2170, 923647), (2422, 827545), (2810, 713279), (2945, 680582), (3287, 609770), (3934, 509485), (4123, 486130), (5339, 375410), (5363, 373730), (5890, 340291), (6055, 331018), (6574, 304885), (8246, 243065), (8711, 230090), (9835, 203794), (10678, 187705), (10726, 186865), (12110, 165509), (16435, 121954), (17422, 115045), (19670, 101897), (20615, 97226), (23009, 87110), (26695, 75082), (26815, 74746), (32870, 60977), (37373, 53630), (37541, 53390), (41230, 48613), (43555, 46018)]