1949639640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{3581}}^1$

素因数の和:3957

約数の個数: 128

約数和(自身を含む): 6318648000

約数和(自身を除く): 4369008360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 349, 390, 520, 698, 780, 1047, 1396, 1560, 1745, 2094, 2792, 3490, 3581, 4188, 4537, 5235, 6980, 7162, 8376, 9074, 10470, 10743, 13611, 13960, 14324, 17905, 18148, 20940, 21486, 22685, 27222, 28648, 35810, 36296, 41880, 42972, 45370, 46553, 53715, 54444, 68055, 71620, 85944, 90740, 93106, 107430, 108888, 136110, 139659, 143240, 181480, 186212, 214860, 232765, 272220, 279318, 372424, 429720, 465530, 544440, 558636, 698295, 931060, 1117272, 1249769, 1396590, 1862120, 2499538, 2793180, 3749307, 4999076, 5586360, 6248845, 7498614, 9998152, 12497690, 14997228, 16246997, 18746535, 24995380, 29994456, 32493994, 37493070, 48740991, 49990760, 64987988, 74986140, 81234985, 97481982, 129975976, 149972280, 162469970, 194963964, 243704955, 324939940, 389927928, 487409910, 649879880, 974819820, 1949639640]

約数ペア:

[(1, 1949639640), (2, 974819820), (3, 649879880), (4, 487409910), (5, 389927928), (6, 324939940), (8, 243704955), (10, 194963964), (12, 162469970), (13, 149972280), (15, 129975976), (20, 97481982), (24, 81234985), (26, 74986140), (30, 64987988), (39, 49990760), (40, 48740991), (52, 37493070), (60, 32493994), (65, 29994456), (78, 24995380), (104, 18746535), (120, 16246997), (130, 14997228), (156, 12497690), (195, 9998152), (260, 7498614), (312, 6248845), (349, 5586360), (390, 4999076), (520, 3749307), (698, 2793180), (780, 2499538), (1047, 1862120), (1396, 1396590), (1560, 1249769), (1745, 1117272), (2094, 931060), (2792, 698295), (3490, 558636), (3581, 544440), (4188, 465530), (4537, 429720), (5235, 372424), (6980, 279318), (7162, 272220), (8376, 232765), (9074, 214860), (10470, 186212), (10743, 181480), (13611, 143240), (13960, 139659), (14324, 136110), (17905, 108888), (18148, 107430), (20940, 93106), (21486, 90740), (22685, 85944), (27222, 71620), (28648, 68055), (35810, 54444), (36296, 53715), (41880, 46553), (42972, 45370)]