20807764900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{2003}}^1$

素因数の和:2222

約数の個数: 144

約数和(自身を含む): 49825435968

約数和(自身を除く): 29017671068

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 131, 244, 260, 262, 305, 325, 524, 610, 650, 655, 793, 1220, 1300, 1310, 1525, 1586, 1703, 2003, 2620, 3050, 3172, 3275, 3406, 3965, 4006, 6100, 6550, 6812, 7930, 7991, 8012, 8515, 10015, 13100, 15860, 15982, 17030, 19825, 20030, 26039, 31964, 34060, 39650, 39955, 40060, 42575, 50075, 52078, 79300, 79910, 85150, 100150, 103883, 104156, 122183, 130195, 159820, 170300, 199775, 200300, 207766, 244366, 260390, 262393, 399550, 415532, 488732, 519415, 520780, 524786, 610915, 650975, 799100, 1038830, 1049572, 1221830, 1301950, 1311965, 1588379, 2077660, 2443660, 2597075, 2603900, 2623930, 3054575, 3176758, 3411109, 5194150, 5247860, 6109150, 6353516, 6559825, 6822218, 7941895, 10388300, 12218300, 13119650, 13644436, 15883790, 16005973, 17055545, 26239300, 31767580, 32011946, 34111090, 39709475, 64023892, 68222180, 79418950, 80029865, 85277725, 158837900, 160059730, 170555450, 208077649, 320119460, 341110900, 400149325, 416155298, 800298650, 832310596, 1040388245, 1600597300, 2080776490, 4161552980, 5201941225, 10403882450, 20807764900]

約数ペア:

[(1, 20807764900), (2, 10403882450), (4, 5201941225), (5, 4161552980), (10, 2080776490), (13, 1600597300), (20, 1040388245), (25, 832310596), (26, 800298650), (50, 416155298), (52, 400149325), (61, 341110900), (65, 320119460), (100, 208077649), (122, 170555450), (130, 160059730), (131, 158837900), (244, 85277725), (260, 80029865), (262, 79418950), (305, 68222180), (325, 64023892), (524, 39709475), (610, 34111090), (650, 32011946), (655, 31767580), (793, 26239300), (1220, 17055545), (1300, 16005973), (1310, 15883790), (1525, 13644436), (1586, 13119650), (1703, 12218300), (2003, 10388300), (2620, 7941895), (3050, 6822218), (3172, 6559825), (3275, 6353516), (3406, 6109150), (3965, 5247860), (4006, 5194150), (6100, 3411109), (6550, 3176758), (6812, 3054575), (7930, 2623930), (7991, 2603900), (8012, 2597075), (8515, 2443660), (10015, 2077660), (13100, 1588379), (15860, 1311965), (15982, 1301950), (17030, 1221830), (19825, 1049572), (20030, 1038830), (26039, 799100), (31964, 650975), (34060, 610915), (39650, 524786), (39955, 520780), (40060, 519415), (42575, 488732), (50075, 415532), (52078, 399550), (79300, 262393), (79910, 260390), (85150, 244366), (100150, 207766), (103883, 200300), (104156, 199775), (122183, 170300), (130195, 159820)]