39421980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1036

約数の個数: 144

約数和(自身を含む): 136491264

約数和(自身を除く): 97069284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 991, 1020, 1105, 1170, 1326, 1530, 1982, 1989, 2210, 2340, 2652, 2973, 3060, 3315, 3964, 3978, 4420, 4955, 5946, 6630, 7956, 8919, 9910, 9945, 11892, 12883, 13260, 14865, 16847, 17838, 19820, 19890, 25766, 29730, 33694, 35676, 38649, 39780, 44595, 50541, 51532, 59460, 64415, 67388, 77298, 84235, 89190, 101082, 115947, 128830, 151623, 154596, 168470, 178380, 193245, 202164, 219011, 231894, 252705, 257660, 303246, 336940, 386490, 438022, 463788, 505410, 579735, 606492, 657033, 758115, 772980, 876044, 1010820, 1095055, 1159470, 1314066, 1516230, 1971099, 2190110, 2318940, 2628132, 3032460, 3285165, 3942198, 4380220, 6570330, 7884396, 9855495, 13140660, 19710990, 39421980]

約数ペア:

[(1, 39421980), (2, 19710990), (3, 13140660), (4, 9855495), (5, 7884396), (6, 6570330), (9, 4380220), (10, 3942198), (12, 3285165), (13, 3032460), (15, 2628132), (17, 2318940), (18, 2190110), (20, 1971099), (26, 1516230), (30, 1314066), (34, 1159470), (36, 1095055), (39, 1010820), (45, 876044), (51, 772980), (52, 758115), (60, 657033), (65, 606492), (68, 579735), (78, 505410), (85, 463788), (90, 438022), (102, 386490), (117, 336940), (130, 303246), (153, 257660), (156, 252705), (170, 231894), (180, 219011), (195, 202164), (204, 193245), (221, 178380), (234, 168470), (255, 154596), (260, 151623), (306, 128830), (340, 115947), (390, 101082), (442, 89190), (468, 84235), (510, 77298), (585, 67388), (612, 64415), (663, 59460), (765, 51532), (780, 50541), (884, 44595), (991, 39780), (1020, 38649), (1105, 35676), (1170, 33694), (1326, 29730), (1530, 25766), (1982, 19890), (1989, 19820), (2210, 17838), (2340, 16847), (2652, 14865), (2973, 13260), (3060, 12883), (3315, 11892), (3964, 9945), (3978, 9910), (4420, 8919), (4955, 7956), (5946, 6630)]