19922640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:309

約数の個数: 160

約数和(自身を含む): 69102720

約数和(自身を除く): 49180080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 257, 272, 285, 304, 323, 340, 380, 408, 456, 510, 514, 570, 646, 680, 760, 771, 816, 912, 969, 1020, 1028, 1140, 1285, 1292, 1360, 1520, 1542, 1615, 1938, 2040, 2056, 2280, 2570, 2584, 3084, 3230, 3855, 3876, 4080, 4112, 4369, 4560, 4845, 4883, 5140, 5168, 6168, 6460, 7710, 7752, 8738, 9690, 9766, 10280, 12336, 12920, 13107, 14649, 15420, 15504, 17476, 19380, 19532, 20560, 21845, 24415, 25840, 26214, 29298, 30840, 34952, 38760, 39064, 43690, 48830, 52428, 58596, 61680, 65535, 69904, 73245, 77520, 78128, 83011, 87380, 97660, 104856, 117192, 131070, 146490, 166022, 174760, 195320, 209712, 234384, 249033, 262140, 292980, 332044, 349520, 390640, 415055, 498066, 524280, 585960, 664088, 830110, 996132, 1048560, 1171920, 1245165, 1328176, 1660220, 1992264, 2490330, 3320440, 3984528, 4980660, 6640880, 9961320, 19922640]

約数ペア:

[(1, 19922640), (2, 9961320), (3, 6640880), (4, 4980660), (5, 3984528), (6, 3320440), (8, 2490330), (10, 1992264), (12, 1660220), (15, 1328176), (16, 1245165), (17, 1171920), (19, 1048560), (20, 996132), (24, 830110), (30, 664088), (34, 585960), (38, 524280), (40, 498066), (48, 415055), (51, 390640), (57, 349520), (60, 332044), (68, 292980), (76, 262140), (80, 249033), (85, 234384), (95, 209712), (102, 195320), (114, 174760), (120, 166022), (136, 146490), (152, 131070), (170, 117192), (190, 104856), (204, 97660), (228, 87380), (240, 83011), (255, 78128), (257, 77520), (272, 73245), (285, 69904), (304, 65535), (323, 61680), (340, 58596), (380, 52428), (408, 48830), (456, 43690), (510, 39064), (514, 38760), (570, 34952), (646, 30840), (680, 29298), (760, 26214), (771, 25840), (816, 24415), (912, 21845), (969, 20560), (1020, 19532), (1028, 19380), (1140, 17476), (1285, 15504), (1292, 15420), (1360, 14649), (1520, 13107), (1542, 12920), (1615, 12336), (1938, 10280), (2040, 9766), (2056, 9690), (2280, 8738), (2570, 7752), (2584, 7710), (3084, 6460), (3230, 6168), (3855, 5168), (3876, 5140), (4080, 4883), (4112, 4845), (4369, 4560)]